Random Log Outs in X11

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1

Operating System: Manjaro Linux
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
Kernel Version: 6.12.11-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 970/PCIe/SSE2
Manufacturer: ASUS
Product Name: All Series

I have 3 screens and two of the GPUs in SLI

For a while now, I’ve been experiencing random log outs. Recently, its been getting more often. I’ll be using the computer for a number of hours or days without logging out, then I go to open an application or window and the whole thing just logs me out back to the login screen. I’m happy to give error reports, but I don’t know what to look for.

Thanks

Jason

2

Hi - it sounds like something pretty fundamental to your session is crashing and kicking you back out to the login screen. The best bet for diagnosing might be to look in your system journal - if you know what time it occurred, then you can look in the journal around that time using the journalctl command.

For example, if a random logout happened at 2:05 PM today, you could use sudo journalctl --since="2025-02-07 14:04:00" --until="2025-02-07 14:06:00" to look at the surrounding couple of minutes and see if any major errors or crashes are being reported there - feel free to post those here and folks can mention anything that might stand out from past experience :slight_smile:

1 Like
3

Thanks for the tip

It just happened again. I misstyped my password getting logged in, that’s why it shows an authentication failure, but soon after that I went to open something and it logged out. Here’s the output during that time

 Feb 07 14:53:55 alfred unix_chkpwd[185400]: password check failed for user (jason)
Feb 07 14:53:55 alfred kscreenlocker_greet[174098]: pam_unix(kde:auth): authentication failure; logname=jason uid=1000 euid=1000 tty= ruser= rhost=  user=jason
Feb 07 14:54:02 alfred plasmashell[113412]: kf.plasma.quick: Exposed with no visual parent. Window positioning broken.
Feb 07 14:54:06 alfred systemd[1830]: Started KDE Discuss.
Feb 07 14:54:06 alfred google-chrome[185462]: Opening in existing browser session.
Feb 07 14:54:07 alfred google-chrome[113928]: [113923:113923:0207/145407.807390:ERROR:interface_endpoint_client.cc(725)] Message 0 rejected by interface blink.mojom.WidgetHost
Feb 07 14:54:21 alfred systemd[1830]: Started Konsole - Terminal.
Feb 07 14:54:23 alfred systemd[1830]: Started app-org.kde.konsole-185594.scope.
Feb 07 14:54:39 alfred sudo[185676]:    jason : TTY=pts/1 ; PWD=/home/jason ; USER=root ; COMMAND=/usr/bin/journalctl
Feb 07 14:54:39 alfred sudo[185676]: pam_unix(sudo:session): session opened for user root(uid=0) by jason(uid=1000)
Feb 07 14:55:00 alfred systemd-coredump[185699]: Process 113239 (Xorg) of user 0 terminated abnormally with signal 6/ABRT, processing...
Feb 07 14:55:00 alfred systemd[1]: Started Process Core Dump (PID 185699/UID 0).
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/ldac
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/aptx_hd
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aptx_hd
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/aptx
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aptx
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/aac
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aac
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/opus_g
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/opus_g
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/sbc
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/sbc
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aptx_ll_1
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aptx_ll_0
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aptx_ll_duplex_1
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/aptx_ll_duplex_0
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/faststream
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/faststream_duplex
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/opus_05
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/opus_05
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSink/opus_05_duplex
Feb 07 14:55:00 alfred bluetoothd[841]: Endpoint unregistered: sender=:1.274 path=/MediaEndpoint/A2DPSource/opus_05_duplex
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-21"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-21"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-21"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-21"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "alsa_input.usb-JOUNIVO_JOUNIVO_JV610P_20180508-00.analog-stereo"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-21"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1b.0.analog-surround-21"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "alsa_input.usb-JOUNIVO_JOUNIVO_JV610P_20180508-00.analog-stereo"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "alsa_input.usb-JOUNIVO_JOUNIVO_JV610P_20180508-00.analog-stereo"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Feb 07 14:55:00 alfred kded6[113384]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Feb 07 14:55:00 alfred plasmashell[113412]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 org.kde.pulseaudio: No object for name "auto_null.monitor"
Feb 07 14:55:00 alfred systemd-coredump[185703]: [🡕] Process 113239 (Xorg) of user 0 dumped core.
                                                 
                                                 Stack trace of thread 113239:
                                                 #0  0x0000794462aff334 n/a (libc.so.6 + 0x96334)
                                                 #1  0x0000794462aa6120 raise (libc.so.6 + 0x3d120)
                                                 #2  0x0000794462a8d4c3 abort (libc.so.6 + 0x244c3)
                                                 #3  0x00005bdc5951b47e n/a (n/a + 0x0)
                                                 #4  0x00005bdc5951c977 n/a (n/a + 0x0)
                                                 #5  0x00005bdc59523938 n/a (n/a + 0x0)
                                                 #6  0x0000794462aa61d0 n/a (libc.so.6 + 0x3d1d0)
                                                 #7  0x0000794461cb0b75 n/a (nvidia_drv.so + 0x4b0b75)
                                                 ELF object binary architecture: AMD x86-64
Feb 07 14:55:00 alfred systemd[1]: systemd-coredump@2-185699-0.service: Deactivated successfully.
Feb 07 14:55:00 alfred systemd[1]: systemd-coredump@2-185699-0.service: Consumed 179ms CPU time, 85.7M memory peak.
Feb 07 14:55:00 alfred at-spi2-registryd[113711]: X connection to :0 broken (explicit kill or server shutdown).
Feb 07 14:55:00 alfred kded6[113496]: X connection to :0 broken (explicit kill or server shutdown).
Feb 07 14:55:00 alfred feishin[139628]: [139628:0207/145500.498686:ERROR:connection.cc(61)] X connection error received.
Feb 07 14:55:00 alfred google-chrome[113928]: [113969:113969:0207/145500.498858:ERROR:connection.cc(63)] X connection error received.
Feb 07 14:55:00 alfred konsole[185594]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kded6[113384]: X connection to :0 broken (explicit kill or server shutdown).
Feb 07 14:55:00 alfred baloorunner[139579]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred dolphin[151666]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kwin_x11[113385]: X connection to :0 broken (explicit kill or server shutdown).
Feb 07 14:55:00 alfred keepassxc[113574]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred pamac-tray-plasma[113597]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kwalletd6[113302]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kded6[113384]: The X11 connection broke: I/O error (code 1)
Feb 07 14:55:00 alfred kclockd[113569]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred krunner[139533]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred xdg-desktop-portal-kde[113448]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred plasmashell[113412]: kf.plasma.quick: Couldn't create KWindowShadow for Osd_QMLTYPE_939(0x59d16d122c90)
Feb 07 14:55:00 alfred plasmashell[113412]: kf.plasma.quick: Couldn't create KWindowShadow for Osd_QMLTYPE_939(0x59d16d122c90)
Feb 07 14:55:00 alfred plasmashell[113412]: kf.plasma.quick: Couldn't create KWindowShadow for Osd_QMLTYPE_939(0x59d16d122c90)
Feb 07 14:55:00 alfred plasmashell[113412]: kf.plasma.quick: Couldn't create KWindowShadow for Osd_QMLTYPE_939(0x59d16d122c90)
Feb 07 14:55:00 alfred plasmashell[113412]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kscreen_backend_launcher[113500]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kdeconnectd[113570]: 2025-02-07T14:55:00 default: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kwin_x11[113385]: The X11 connection broke: I/O error (code 1)
Feb 07 14:55:00 alfred ksmserver[113382]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred msm_kde_notifier[113564]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kactivitymanagerd[113441]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred krunner[139533]: QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
Feb 07 14:55:00 alfred gmenudbusmenuproxy[113444]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred systemd[1830]: app-zulip\x2ddesktop@autostart.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: dbus-:1.301-org.a11y.atspi.Registry@0.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: dbus-:1.301-org.a11y.atspi.Registry@0.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: dbus-:1.301-org.a11y.atspi.Registry@0.service: Consumed 5.787s CPU time, 1.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: app-org.keepassxc.KeePassXC@autostart.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: app-org.keepassxc.KeePassXC@autostart.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: app-org.keepassxc.KeePassXC@autostart.service: Consumed 8.650s CPU time, 52.2M memory peak.
Feb 07 14:55:00 alfred kglobalacceld[113344]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred polkit-kde-authentication-agent-1[113446]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred kglobalacceld[113344]: The X11 connection broke: I/O error (code 1)
Feb 07 14:55:00 alfred kglobalacceld[113344]: XIO:  fatal IO error 25 (Inappropriate ioctl for device) on X server ":0"
Feb 07 14:55:00 alfred kglobalacceld[113344]:       after 8 requests (8 known processed) with 0 events remaining.
Feb 07 14:55:00 alfred google-chrome[113928]: [113969:114075:0207/145500.501590:ERROR:x11_software_bitmap_presenter.cc(150)] XGetWindowAttributes failed for window 4194636
Feb 07 14:55:00 alfred google-chrome[113928]: [113969:114075:0207/145500.530472:ERROR:connection.cc(63)] X connection error received.
Feb 07 14:55:00 alfred systemd[1830]: Stopped target plasma-workspace-x11.target.
Feb 07 14:55:00 alfred systemd[1830]: Stopped target KDE Plasma Workspace.
Feb 07 14:55:00 alfred systemd[1830]: Stopped target Startup of XDG autostart applications.
Feb 07 14:55:00 alfred systemd[1830]: Stopping Nextcloud...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Geoclue Demo agent...
Feb 07 14:55:00 alfred systemd[1830]: Stopping MSM Notifier...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Clock...
Feb 07 14:55:00 alfred systemd[1830]: Stopping KDE Connect...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Update Notifier Tray Icon...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Radiotray-NG...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Zulip...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Accessibility services bus...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Virtual filesystem service...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Virtual filesystem metadata service...
Feb 07 14:55:00 alfred systemd[1830]: Stopping KRunner provider for baloo file indexer...
Feb 07 14:55:00 alfred dbus-broker[113698]: Dispatched 11972 messages @ 2(±2)μs / message.
Feb 07 14:55:00 alfred systemd[1830]: Stopping Proxies GTK DBus menus to a Plasma readable format...
Feb 07 14:55:00 alfred org_kde_powerdevil[113447]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred xembedsniproxy[113449]: The X11 connection broke (error 1). Did the X11 server die?
Feb 07 14:55:00 alfred systemd[1830]: Stopping KAccess...
Feb 07 14:55:00 alfred systemd[1830]: Stopping KRunner...
Feb 07 14:55:00 alfred systemd[1830]: Stopping KDE Window Manager...
Feb 07 14:55:00 alfred systemd[1]: run-user-1000-gvfs.mount: Deactivated successfully.
Feb 07 14:55:00 alfred systemd[1830]: Stopping KDE PolicyKit Authentication Agent...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Powerdevil...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Handle legacy xembed system tray icons...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Portal service...
Feb 07 14:55:00 alfred systemd[1830]: Stopping flatpak document portal service...
Feb 07 14:55:00 alfred systemd[1830]: Stopping sandboxed app permission store...
Feb 07 14:55:00 alfred systemd[1830]: Stopping Baloo File Indexer Daemon...
Feb 07 14:55:00 alfred systemd[1]: run-user-1000-doc.mount: Deactivated successfully.
Feb 07 14:55:00 alfred dbus-broker-launch[113697]: Caught SIGCHLD of broker.
Feb 07 14:55:00 alfred startplasma-x11[113303]: org.kde.startup: "kdeinit5_shutdown" QList() exited with code 255
Feb 07 14:55:00 alfred systemd[1830]: Stopped KScreen.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kscreen.service: Consumed 5.702s CPU time, 3.7M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped sandboxed app permission store.
Feb 07 14:55:00 alfred systemd[1830]: app-msm_kde_notifier@autostart.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: app-msm_kde_notifier@autostart.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: Stopped MSM Notifier.
Feb 07 14:55:00 alfred systemd[1830]: app-msm_kde_notifier@autostart.service: Consumed 14.120s CPU time, 7.3M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: app-radiotray\x2dng@autostart.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: app-radiotray\x2dng@autostart.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Radiotray-NG.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Geoclue Demo agent.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Virtual filesystem metadata service.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Portal service.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Accessibility services bus.
Feb 07 14:55:00 alfred polkitd[843]: Unregistered Authentication Agent for unix-session:5 (system bus name :1.280, object path /org/kde/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disco>
Feb 07 14:55:00 alfred systemd[1830]: Stopped Virtual filesystem service.
Feb 07 14:55:00 alfred systemd[1830]: Stopped flatpak document portal service.
Feb 07 14:55:00 alfred systemd[1830]: app-zulip\x2ddesktop@autostart.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Zulip.
Feb 07 14:55:00 alfred systemd[1830]: app-zulip\x2ddesktop@autostart.service: Consumed 1min 35.651s CPU time, 550.2M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kded6.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: plasma-kded6.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE Daemon 6.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kded6.service: Consumed 9.537s CPU time, 31.5M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE Global Shortcuts Server.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kglobalaccel.service: Consumed 4.189s CPU time, 16.1M memory peak.
Feb 07 14:55:00 alfred sddm-helper[113295]: [PAM] Closing session
Feb 07 14:55:00 alfred sddm-helper[113295]: pam_unix(sddm:session): session closed for user jason
Feb 07 14:55:00 alfred sddm-helper[113295]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_close_session
Feb 07 14:55:00 alfred sddm-helper[113295]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Feb 07 14:55:00 alfred sddm-helper[113295]: [PAM] Ended.
Feb 07 14:55:00 alfred sddm[987]: Auth: sddm-helper exited successfully
Feb 07 14:55:00 alfred sddm[987]: Socket server stopping...
Feb 07 14:55:00 alfred sddm[987]: Socket server stopped.
Feb 07 14:55:00 alfred sddm[987]: Display server stopping...
Feb 07 14:55:00 alfred systemd-logind[845]: Session 5 logged out. Waiting for processes to exit.
Feb 07 14:55:00 alfred systemd[1]: session-5.scope: Deactivated successfully.
Feb 07 14:55:00 alfred systemd[1]: session-5.scope: Consumed 13.511s CPU time, 58.8M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Clock.
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.kclockd\x2dautostart@autostart.service: Consumed 6.378s CPU time, 18.5M memory peak.
Feb 07 14:55:00 alfred systemd-logind[845]: Removed session 5.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Handle legacy xembed system tray icons.
Feb 07 14:55:00 alfred systemd[1830]: plasma-xembedsniproxy.service: Consumed 5.645s CPU time, 13.6M memory peak.
Feb 07 14:55:00 alfred sudo[185676]: pam_unix(sudo:session): session closed for user root
Feb 07 14:55:00 alfred systemd[1830]: Stopped Baloo File Indexer Daemon.
Feb 07 14:55:00 alfred systemd[1830]: kde-baloo.service: Consumed 20.108s CPU time, 513.9M memory peak, 26.7M memory swap peak.
Feb 07 14:55:00 alfred systemd[1830]: app-feishin@022b7f90c0a4441e9f4b6c1b1d938f4c.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: Stopped Update Notifier Tray Icon.
Feb 07 14:55:00 alfred systemd[1830]: app-pamac\x2dtray\x2dplasma@autostart.service: Consumed 7min 28.380s CPU time, 1.9G memory peak.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kwin_x11.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: plasma-kwin_x11.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE Window Manager.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kwin_x11.service: Consumed 10min 43.708s CPU time, 110.5M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KActivityManager Activity manager Service.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kactivitymanagerd.service: Consumed 9.961s CPU time, 17.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Proxies GTK DBus menus to a Plasma readable format.
Feb 07 14:55:00 alfred systemd[1830]: plasma-gmenudbusmenuproxy.service: Consumed 5.462s CPU time, 13.6M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KAccess.
Feb 07 14:55:00 alfred systemd[1830]: plasma-kaccess.service: Consumed 10.097s CPU time, 17.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE PolicyKit Authentication Agent.
Feb 07 14:55:00 alfred systemd[1830]: plasma-polkit-agent.service: Consumed 6.044s CPU time, 38.3M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Powerdevil.
Feb 07 14:55:00 alfred systemd[1830]: plasma-powerdevil.service: Consumed 7.290s CPU time, 18.6M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Xdg Desktop Portal For KDE.
Feb 07 14:55:00 alfred systemd[1830]: plasma-xdg-desktop-portal-kde.service: Consumed 9.934s CPU time, 67.1M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE Connect.
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.kdeconnect.daemon@autostart.service: Consumed 9.506s CPU time, 31.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KRunner provider for baloo file indexer.
Feb 07 14:55:00 alfred systemd[1830]: plasma-baloorunner.service: Consumed 5.767s CPU time, 157.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.konsole@6f816c6af6a24ecd978c8489a3dd5579.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.konsole@6f816c6af6a24ecd978c8489a3dd5579.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: app-feishin@022b7f90c0a4441e9f4b6c1b1d938f4c.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: app-feishin@022b7f90c0a4441e9f4b6c1b1d938f4c.service: Consumed 10min 42.805s CPU time, 387.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped Nextcloud.
Feb 07 14:55:00 alfred systemd[1830]: app-Nextcloud@autostart.service: Consumed 58.314s CPU time, 182.3M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped target Current graphical user session.
Feb 07 14:55:00 alfred systemd[1830]: Stopped target KDE Plasma Workspace Core.
Feb 07 14:55:00 alfred systemd[1830]: plasma-ksmserver.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: plasma-ksmserver.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE Session Management Server.
Feb 07 14:55:00 alfred systemd[1830]: plasma-ksmserver.service: Consumed 1min 44.697s CPU time, 394M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KRunner.
Feb 07 14:55:00 alfred systemd[1830]: plasma-krunner.service: Consumed 25.561s CPU time, 135.9M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.dolphin@016b178815b64723b35a1860fac5bcda.service: Main process exited, code=exited, status=1/FAILURE
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.dolphin@016b178815b64723b35a1860fac5bcda.service: Failed with result 'exit-code'.
Feb 07 14:55:00 alfred systemd[1830]: app-org.kde.dolphin@016b178815b64723b35a1860fac5bcda.service: Consumed 13.531s CPU time, 133.5M memory peak.
Feb 07 14:55:00 alfred systemd[1830]: Stopped target Session services which should run early before the graphical session is brought up.
Feb 07 14:55:00 alfred systemd[1830]: Stopped KDE Plasma Workspace.
Feb 07 14:55:00 alfred systemd[1830]: plasma-plasmashell.service: Consumed 1min 26.921s CPU time, 575.7M memory peak.
Feb 07 14:55:01 alfred systemd[1830]: app-steam@8210cb272bdb4c508f04e44de52bc1d9.service: Consumed 2h 9min 36.177s CPU time, 4.3G memory peak.
Feb 07 14:55:01 alfred sddm[987]: Display server stopped.
Feb 07 14:55:01 alfred sddm[987]: Running display stop script  QList("/usr/share/sddm/scripts/Xstop")
Feb 07 14:55:01 alfred sddm[987]: Removing display SDDM::Display(0x5af147e88b60) ...
Feb 07 14:55:01 alfred sddm[987]: Adding new display...
Feb 07 14:55:01 alfred sddm[987]: Loaded empty theme configuration
Feb 07 14:55:01 alfred sddm[987]: Xauthority path: "/run/sddm/xauth_hYmPTp"
Feb 07 14:55:01 alfred sddm[987]: Using VT 2
Feb 07 14:55:01 alfred sddm[987]: Display server starting...
Feb 07 14:55:01 alfred sddm[987]: Writing cookie to "/run/sddm/xauth_hYmPTp"
Feb 07 14:55:01 alfred sddm[987]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_hYmPTp -noreset -displayfd 18
Feb 07 14:55:01 alfred systemd[1830]: app-com.google.Chrome-113923.scope: Consumed 21min 49.470s CPU time, 1.2G memory peak.
Feb 07 14:55:01 alfred systemd[1830]: app-default\x2dgoogle\x2dchrome@f0f5f410b18045d1ad53d573f4313d04.service: Consumed 2h 54min 17.161s CPU time, 6.3G memory peak.
Feb 07 14:55:02 alfred sddm[987]: Setting default cursor
Feb 07 14:55:02 alfred sddm[987]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Feb 07 14:55:02 alfred sddm[987]: Display server started.
Feb 07 14:55:02 alfred sddm[987]: Socket server starting...
Feb 07 14:55:02 alfred sddm[987]: Socket server started.
Feb 07 14:55:02 alfred sddm[987]: Loading theme configuration from "/usr/share/sddm/themes/breath/theme.conf"
Feb 07 14:55:02 alfred sddm[987]: Greeter starting...
Feb 07 14:55:02 alfred sddm-helper[185788]: [PAM] Starting...
Feb 07 14:55:02 alfred sddm-helper[185788]: [PAM] Authenticating...
Feb 07 14:55:02 alfred sddm-helper[185788]: [PAM] returning.
Feb 07 14:55:02 alfred sddm-helper[185788]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=960) by (uid=0)
Feb 07 14:55:02 alfred systemd-logind[845]: New session c3 of user sddm.
Feb 07 14:55:02 alfred systemd[1]: Created slice User Slice of UID 960.
Feb 07 14:55:02 alfred systemd[1]: Starting User Runtime Directory /run/user/960...
Feb 07 14:55:02 alfred systemd[1]: Finished User Runtime Directory /run/user/960.
Feb 07 14:55:02 alfred systemd[1]: Starting User Manager for UID 960...
Feb 07 14:55:02 alfred (systemd)[185791]: pam_warn(systemd-user:setcred): function=[pam_sm_setcred] flags=0x8002 service=[systemd-user] terminal=[] user=[sddm] ruser=[<unknown>] rhost=[<unknown>]
Feb 07 14:55:02 alfred (systemd)[185791]: pam_unix(systemd-user:session): session opened for user sddm(uid=960) by sddm(uid=0)
Feb 07 14:55:02 alfred systemd-logind[845]: New session 6 of user sddm.
Feb 07 14:55:02 alfred systemd[185791]: Queued start job for default target Main User Target.
Feb 07 14:55:02 alfred systemd[185791]: Created slice User Application Slice.
Feb 07 14:55:02 alfred systemd[185791]: Reached target Paths.
Feb 07 14:55:02 alfred systemd[185791]: Reached target Timers.
Feb 07 14:55:02 alfred systemd[185791]: Starting D-Bus User Message Bus Socket...
Feb 07 14:55:02 alfred systemd[185791]: Listening on GnuPG network certificate management daemon.
Feb 07 14:55:02 alfred systemd[185791]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Feb 07 14:55:02 alfred systemd[185791]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).
Feb 07 14:55:02 alfred systemd[185791]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Feb 07 14:55:02 alfred systemd[185791]: Listening on GnuPG cryptographic agent and passphrase cache.
Feb 07 14:55:02 alfred systemd[185791]: Listening on GnuPG public key management service.
Feb 07 14:55:02 alfred systemd[185791]: Listening on p11-kit server.
Feb 07 14:55:02 alfred systemd[185791]: Listening on PipeWire PulseAudio.
Feb 07 14:55:02 alfred systemd[185791]: Listening on PipeWire Multimedia System Sockets.
Feb 07 14:55:02 alfred systemd[185791]: Listening on D-Bus User Message Bus Socket.
Feb 07 14:55:02 alfred systemd[185791]: Reached target Sockets.
Feb 07 14:55:02 alfred systemd[185791]: Reached target Basic System.
Feb 07 14:55:02 alfred systemd[1]: Started User Manager for UID 960.
Feb 07 14:55:02 alfred systemd[185791]: Starting Update XDG user dir configuration...
Feb 07 14:55:02 alfred systemd[1]: Started Session c3 of User sddm.
Feb 07 14:55:02 alfred sddm-helper[185788]: Writing cookie to "/tmp/xauth_irhoHm"
Feb 07 14:55:02 alfred sddm-helper[185788]: Starting X11 session: "" "/usr/bin/sddm-greeter-qt6 --socket /tmp/sddm-:0-YfaFrA --theme /usr/share/sddm/themes/breath"
Feb 07 14:55:02 alfred sddm[987]: Greeter session started successfully
Feb 07 14:55:02 alfred systemd[185791]: Finished Update XDG user dir configuration.
Feb 07 14:55:02 alfred systemd[185791]: Reached target Main User Target.
Feb 07 14:55:02 alfred systemd[185791]: Startup finished in 274ms.
Feb 07 14:55:02 alfred sddm-greeter-qt6[185802]: High-DPI autoscaling not Enabled
Feb 07 14:55:02 alfred sddm-greeter-qt6[185802]: Reading from "/usr/share/wayland-sessions/plasmawayland.desktop"
Feb 07 14:55:02 alfred sddm-greeter-qt6[185802]: Reading from "/usr/share/xsessions/plasma.desktop"
Feb 07 14:55:02 alfred sddm-greeter-qt6[185802]: Loading theme configuration from "/usr/share/sddm/themes/breath/theme.conf"
Feb 07 14:55:02 alfred systemd[185791]: Created slice User Core Session Slice.
Feb 07 14:55:02 alfred systemd[185791]: Starting D-Bus User Message Bus...
Feb 07 14:55:02 alfred dbus-broker-launch[185806]: Service file '/usr/share//dbus-1/services/org.kde.dolphin.FileManager1.service' is not named after the D-Bus name 'org.freedesktop.FileManager1>
Feb 07 14:55:02 alfred dbus-broker-launch[185806]: Service file '/usr/share//dbus-1/services/org.kde.kscreen.service' is not named after the D-Bus name 'org.kde.KScreen'.
Feb 07 14:55:02 alfred dbus-broker-launch[185806]: Service file '/usr/share//dbus-1/services/org.kde.plasma.Notifications.service' is not named after the D-Bus name 'org.freedesktop.Notification>
Feb 07 14:55:02 alfred dbus-broker-launch[185806]: Policy to allow eavesdropping in /usr/share/dbus-1/session.conf +31: Eavesdropping is deprecated and ignored
Feb 07 14:55:02 alfred dbus-broker-launch[185806]: Policy to allow eavesdropping in /usr/share/dbus-1/session.conf +33: Eavesdropping is deprecated and ignored
Feb 07 14:55:02 alfred systemd[185791]: Started D-Bus User Message Bus.
Feb 07 14:55:02 alfred dbus-broker-launch[185806]: Ready
Feb 07 14:55:02 alfred sddm-greeter-qt6[185802]: Connected to the daemon.
Feb 07 14:55:02 alfred sddm[987]: Message received from greeter: Connect
Feb 07 14:55:02 alfred sddm-greeter-qt6[185802]: Loading file:///usr/share/sddm/themes/breath/Main.qml...
Feb 07 14:55:03 alfred sddm-greeter-qt6[185802]: Adding view for "DP-1" QRect(0,0 1920x1080)
Feb 07 14:55:03 alfred sddm-greeter-qt6[185802]: Loading file:///usr/share/sddm/themes/breath/Main.qml...

Thanks

Jason

4

Other folks here may have clearer ideas on this one, as I’m no expert at reading crash logs and backtraces…but, these are the things that come to mind for me at least:

  • The systemd-coredump line is indicating that the X11 server itself crashed. That basically brought down your whole graphical session along with it, and kicked you back to SDDM to start a new session
  • You’ve got NVIDIA drivers installed - what process did you follow to get those up and running, and which version do you have installed?
  • Does the issue occur if you boot with the Nouveau drivers instead?
  • Do you know specifically when this issue started, and can you see which packages had updates installed right around that time?
1 Like
5

I don’t remember exactly how I installed the NVidia drivers.

Currently its using the 550.144.03 driver

I first started noticing the logout issue back when I first upgraded to Plasma 6. This was also with Manjaro. That was a while back. Since then, I’ve wiped my install, put in new drives, and reinstalled. That was about 6 months ago when I reinstalled. That was when I would have selected the proprietary drivers, which is when I’m guessing it would have installed the NVIDIA drivers. This is on the same computer, just newer drives.

I continued to notice the log outs even after having a new installation of Manjaro.

Recently, it wasn’t as often. I just did an upgrade this week and the logouts became more frequent. Instead of once every few days, to a couple of times a day.

The logouts were not happening when I was using Plasma 5.

6

Please consider enabling debuginfod Debuginfod - ArchWiki to get better output, sudo pacman -Sy debuginfod.
Then use coredumpctl -1 dump Xorg to get an informative backtrace.
Chances are, you should report this to Nvidia.

The stack trace starts in nvidia_drv.so, i.e the Nvidia Driver.

two of the GPUs in SLI

How is SLI support in Linux, I wonder.
This technology has been discontinued.

Sorry for asking but is Wayland any better ? I am guessing you have reasons to use X11. SLI might not work at all.

Or other desktop environment ?

1 Like
7

Thank you for writing back

I installed Debuginfod and used the command you recommended. Here is the output:

PID: 113239 (Xorg)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 6 (ABRT)
     Timestamp: Fri 2025-02-07 14:55:00 MST (18h ago)
  Command Line: /usr/lib/Xorg -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_RnHblq -noreset -displayfd 18
    Executable: /usr/lib/Xorg
 Control Group: /system.slice/sddm.service
          Unit: sddm.service
         Slice: system.slice
       Boot ID: a850f8986ed9431fb970c1591b20d572
    Machine ID: d6608db5f5ba4d64bfae9b2996e2462d
      Hostname: alfred
       Storage: /var/lib/systemd/coredump/core.Xorg.0.a850f8986ed9431fb970c1591b20d572.113239.1738965300000000.zst (inaccessible)
       Message: Process 113239 (Xorg) of user 0 dumped core.
                
                Stack trace of thread 113239:
                #0  0x0000794462aff334 n/a (libc.so.6 + 0x96334)
                #1  0x0000794462aa6120 raise (libc.so.6 + 0x3d120)
                #2  0x0000794462a8d4c3 abort (libc.so.6 + 0x244c3)
                #3  0x00005bdc5951b47e n/a (n/a + 0x0)
                #4  0x00005bdc5951c977 n/a (n/a + 0x0)
                #5  0x00005bdc59523938 n/a (n/a + 0x0)
                #6  0x0000794462aa61d0 n/a (libc.so.6 + 0x3d1d0)
                #7  0x0000794461cb0b75 n/a (nvidia_drv.so + 0x4b0b75)
                ELF object binary architecture: AMD x86-64
Refusing to dump core to tty (use shell redirection or specify --output).

Is there something else I need to do with this?

Back when I was building this computer (2014 or 2015), I’m pretty sure it said that Linux supported SLI. I haven’t kept up with changes since then, so I’m not really sure. Admittedly, its an old build, but has continued to work most of the time.

I’m assuming that its still supported as this screen shot shows that it reconginizes 2 GPUs

Screenshot_20250208_092757
Screenshot_20250208_0927571009×917 168 KB

I also realize there is a lot more about linux than what I know.

I only use X11 because I have never been able to get Wayland to work for me. Even with a fresh install.

Thanks

Jason

8

Sorry I gave you the wrong command.

You will need to use coredumpctl -1 gdb Xorg and after it has processed for a while, you will see --Type <RET>.. then type Return, it will happen a few times probably.
Then when you see (gdb) line, type in bt (that’s backtrace) then Return, then the output should be more interesting.
After copy-pasting the result, something like:

                #0  0x0000794462aff334 n/a (libc.so.6 + 0x96334)
                #1  0x0000794462aa6120 raise (libc.so.6 + 0x3d120)
                #2  0x0000794462a8d4c3 abort (libc.so.6 + 0x244c3)
                #3  0x00005bdc5951b47e n/a (n/a + 0x0)
                #4  0x00005bdc5951c977 n/a (n/a + 0x0)
                #5  0x00005bdc59523938 n/a (n/a + 0x0)
                #6  0x0000794462aa61d0 n/a (libc.so.6 + 0x3d1d0)
                #7  0x0000794461cb0b75 n/a (nvidia_drv.so + 0x4b0b75)

Hit Ctrl+D to exit gdb.

I’m assuming that its still supported as this screen shot shows that it reconginizes 2 GPUs

A status UI won’t tell you how good the support is.
Might just be regressions in new driver versions for SLI, since NVIDIA probably doesn’t test it much especially for their Linux support.

I also realize there is a lot more about linux than what I know.

Users shouldn’t have to deal with this kind of issues, but until the issues are fixed, users can help finding them.

I only use X11 because I have never been able to get Wayland to work for me. Even with a fresh install.

Probably the NVIDIA driver didn’t implement SLI support for Wayland. Just a guess.

1 Like
9

Just to confirm, yep: Wayland support for the 565 release series - Linux - NVIDIA Developer Forums

The following features will not be supported on Wayland or Xwayland:

  • Implicit SLI Mosaic
    ** This feature refers to when an application presents to a virtual display which is tiled across multiple physical displays.
    ** Please see below for how “Explicit SLI” will be supported.

The following features will instead be available through Vulkan Direct to Display:

  • Vulkan Explicit SLI
    ** Will be supported through VK_KHR_device_group
10

And KWin does not run with vulkan, this will come, but not anytime soon.

11

after trying coredumpctl -1 gdb Xorg I get this

           PID: 113239 (Xorg)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 6 (ABRT)
     Timestamp: Fri 2025-02-07 14:55:00 MST (4 days ago)
  Command Line: /usr/lib/Xorg -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_RnHblq -noreset -displayfd 18
    Executable: /usr/lib/Xorg
 Control Group: /system.slice/sddm.service
          Unit: sddm.service
         Slice: system.slice
       Boot ID: a850f8986ed9431fb970c1591b20d572
    Machine ID: d6608db5f5ba4d64bfae9b2996e2462d
      Hostname: alfred
       Storage: /var/lib/systemd/coredump/core.Xorg.0.a850f8986ed9431fb970c1591b20d572.113239.1738965300000000.zst (present)
  Size on Disk: 3.4M
       Message: Process 113239 (Xorg) of user 0 dumped core.
                
                Stack trace of thread 113239:
                #0  0x0000794462aff334 n/a (libc.so.6 + 0x96334)
                #1  0x0000794462aa6120 raise (libc.so.6 + 0x3d120)
                #2  0x0000794462a8d4c3 abort (libc.so.6 + 0x244c3)
                #3  0x00005bdc5951b47e n/a (n/a + 0x0)
                #4  0x00005bdc5951c977 n/a (n/a + 0x0)
                #5  0x00005bdc59523938 n/a (n/a + 0x0)
                #6  0x0000794462aa61d0 n/a (libc.so.6 + 0x3d1d0)
                #7  0x0000794461cb0b75 n/a (nvidia_drv.so + 0x4b0b75)
                ELF object binary architecture: AMD x86-64

Failed to invoke gdb: No such file or directory

There’s no option to do any of the options you listed after that.

So from what has been said in this thread, SLI is not being supported. Do I just need to remove a card and go with using one video card? It sounds as if it is just a waste of electricity at this point :slight_smile:
Jason

12

You’d need to install gdb first.

Seems like a good idea, but I can’t tell you what to do.
AFAICT very few games can take advantage of SLI these days, and the desktop has plenty of GPU power with a single 970.

You can also upgrade to Plasma 6.3 and see if that changes anything.

1 Like
13

I think its still not doing something correct with the logging, but here’s what I got this time:

sudo coredumpctl -1 gdb Xorg                                                                                     ✔  32s  
           PID: 113239 (Xorg)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 6 (ABRT)
     Timestamp: Fri 2025-02-07 14:55:00 MST (5 days ago)
  Command Line: /usr/lib/Xorg -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_RnHblq -noreset -displayfd 18
    Executable: /usr/lib/Xorg
 Control Group: /system.slice/sddm.service
          Unit: sddm.service
         Slice: system.slice
       Boot ID: a850f8986ed9431fb970c1591b20d572
    Machine ID: d6608db5f5ba4d64bfae9b2996e2462d
      Hostname: alfred
       Storage: /var/lib/systemd/coredump/core.Xorg.0.a850f8986ed9431fb970c1591b20d572.113239.1738965300000000.zst (present)
  Size on Disk: 3.4M
       Message: Process 113239 (Xorg) of user 0 dumped core.
                
                Stack trace of thread 113239:
                #0  0x0000794462aff334 n/a (libc.so.6 + 0x96334)
                #1  0x0000794462aa6120 raise (libc.so.6 + 0x3d120)
                #2  0x0000794462a8d4c3 abort (libc.so.6 + 0x244c3)
                #3  0x00005bdc5951b47e n/a (n/a + 0x0)
                #4  0x00005bdc5951c977 n/a (n/a + 0x0)
                #5  0x00005bdc59523938 n/a (n/a + 0x0)
                #6  0x0000794462aa61d0 n/a (libc.so.6 + 0x3d1d0)
                #7  0x0000794461cb0b75 n/a (nvidia_drv.so + 0x4b0b75)
                ELF object binary architecture: AMD x86-64

GNU gdb (GDB) 16.1
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Reading symbols from /usr/lib/Xorg...
(No debugging symbols found in /usr/lib/Xorg)

warning: Can't open file /memfd:/.nvidia_drv.XXXXXX (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:xorg (deleted) during file-backed mapping note processing

warning: Can't open file /SYSV00000000 (deleted) during file-backed mapping note processing
[New LWP 113239]
[New LWP 113242]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/lib/Xorg -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_RnHblq -noreset -displayfd 18'.
Program terminated with signal SIGABRT, Aborted.
#0  0x0000794462aff334 in ?? () from /usr/lib/libc.so.6
[Current thread is 1 (Thread 0x7944623dc9c0 (LWP 113239))]
(gdb) Return
Undefined command: "Return".  Try "help".
(gdb) bt
#0  0x0000794462aff334 in ?? () from /usr/lib/libc.so.6
#1  0x0000794462aa6120 in raise () from /usr/lib/libc.so.6
#2  0x0000794462a8d4c3 in abort () from /usr/lib/libc.so.6
#3  0x00005bdc5951b47e in OsAbort ()
#4  0x00005bdc5951c977 in FatalError ()
#5  0x00005bdc59523938 in ?? ()
#6  <signal handler called>
#7  0x0000794461cb0b75 in ?? () from /usr/lib/xorg/modules/drivers/nvidia_drv.so
#8  0x00005bdc70d49e50 in ?? ()
#9  0x0000794461cd1b90 in ?? () from /usr/lib/xorg/modules/drivers/nvidia_drv.so
#10 0x00005bdc70e70fe0 in ?? ()
#11 0x00000332000012e6 in ?? ()
#12 0x00000000007fffff in ?? ()
#13 0x00005bdc726426e0 in ?? ()
#14 0x00007ffe94f40f10 in ?? ()
#15 0x00005bdc70e18700 in ?? ()
#16 0x00005bdc7115dbb0 in ?? ()
#17 0x00005bdc7115db10 in ?? ()
#18 0x0000794461e559c0 in ?? () from /usr/lib/xorg/modules/drivers/nvidia_drv.so
#19 0x00005bdc5948fe03 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) Return
Undefined command: "Return".  Try "help".
(gdb)
14

Please consider enabling debuginfod Debuginfod - ArchWiki to get better output, sudo pacman -Sy debuginfod.

That’s missing.

all the ?? () should tell us something.

Once it is activated, you can run the last command with the same process (it will download files) and it should tell us something.

15

Same issue.

My operating system is ArchLinux 6.12.13-1-lts, Plasma 6.3.0 X11.

16

Do you have an SLI setup too ?

Can you follow the steps Random Log Outs - #8 by meven to get a good understanding of the issue.

17

No, I only have one RTX 3090 GPU and two monitors connected. This issue seems not exist under Wayland. I will try your suggestions after finishing my current works (I have to switch to Wayland to continue my work although Wayland is more unstable in some ways :joy:).

18

Hi, I have tried the command sudo coredumpctl -1 gdb Xorg, and it produces:

           PID: 16835 (Xorg)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 11 (SEGV)
     Timestamp: Tue 2025-02-18 16:10:04 CST (4h 46min ago)
  Command Line: /usr/lib/Xorg -nolisten tcp -background none -seat seat0 vt1 -auth /run/sddm/xauth_KhBsCq -noreset -displayfd 17
    Executable: /usr/lib/Xorg
 Control Group: /system.slice/sddm.service
          Unit: sddm.service
         Slice: system.slice
       Boot ID: b2e4133c0dd448dea2a2267b9a8adb01
    Machine ID: 546e9c9b93f84da482914cbbf6aa1697
      Hostname: arch
       Storage: /var/lib/systemd/coredump/core.Xorg.0.b2e4133c0dd448dea2a2267b9a8adb01.16835.1739866204000000.zst (present)
  Size on Disk: 11.2M
       Message: Process 16835 (Xorg) of user 0 dumped core.
                
                Stack trace of thread 16835:
                #0  0x00007c58e09548ef n/a (libvnc.so + 0x348ef)
                #1  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #2  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #3  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #4  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #5  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #6  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #7  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #8  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #9  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #10 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #11 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #12 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #13 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #14 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #15 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #16 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #17 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #18 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #19 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #20 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #21 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #22 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #23 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #24 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #25 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #26 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #27 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #28 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #29 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #30 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #31 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #32 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #33 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #34 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #35 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #36 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #37 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #38 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #39 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #40 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #41 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #42 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #43 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #44 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #45 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #46 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #47 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #48 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #49 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #50 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #51 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #52 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #53 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #54 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #55 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #56 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #57 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #58 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #59 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #60 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #61 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #62 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #63 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                
                Stack trace of thread 16874:
                #0  0x00007c58e0954946 n/a (libvnc.so + 0x34946)
                #1  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #2  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #3  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #4  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #5  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #6  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #7  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #8  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #9  0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #10 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #11 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #12 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #13 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #14 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #15 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #16 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #17 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #18 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #19 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #20 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #21 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #22 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #23 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #24 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #25 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #26 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #27 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #28 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #29 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #30 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #31 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #32 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #33 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #34 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #35 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #36 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #37 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #38 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #39 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #40 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #41 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #42 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #43 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #44 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #45 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #46 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #47 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #48 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #49 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #50 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #51 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #52 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #53 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #54 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #55 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #56 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #57 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #58 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #59 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #60 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #61 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #62 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                #63 0x00007c58e0954949 n/a (libvnc.so + 0x34949)
                ELF object binary architecture: AMD x86-64

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Reading symbols from /usr/lib/Xorg...
Reading symbols from /usr/lib/debug/usr/lib/Xorg.debug...

warning: Can't open file /memfd:xorg (deleted) during file-backed mapping note processing

warning: Can't open file /SYSV00000000 (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:/.nvidia_drv.XXXXXX (deleted) during file-backed mapping note processing
[New LWP 16835]
[New LWP 16874]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
Core was generated by `/usr/lib/Xorg -nolisten tcp -background none -seat seat0 vt1 -auth /run/sddm/xauth_KhBsCq -noreset -displayfd 17'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007c58e09548ef in vncHooksMoveCursor (dev=0x644c17428e20, screen=0x644c16c24590, x=3720, y=242) at ../../include/privates.h:164
164         if (key->size)
[Current thread is 1 (Thread 0x7c58e0a2ea00 (LWP 16835))]
(gdb)

And then I typed bt to print the backtrace:

#0  0x00007c58e09548ef in vncHooksMoveCursor (dev=0x644c17428e20, screen=0x644c16c24590, x=3720, y=242) at ../../include/privates.h:164
#1  0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#2  0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#3  0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#4  0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#5  0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#6  0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
... (same lines)
#261859 0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#261860 0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#261861 0x00007c58e0954949 in vncHooksMoveCursor (dev=<optimized out>, screen=<optimized out>, x=<optimized out>, y=<optimized out>) at /usr/src/debug/tigervnc/tigervnc/unix/xserver/hw/vnc/vncHooks.c:1265
#261862 0x0000644bea6d74a9 in miPointerUpdateSprite (pDev=0x644c17428e20) at ../xorg-server/mi/mipointer.c:431
#261863 mieqProcessInputEvents () at ../xorg-server/mi/mieq.c:571
#261864 0x0000644bea7fe9b3 in ProcessInputEvents () at ../xorg-server/hw/xfree86/common/xf86Events.c:143
#261865 0x0000644bea6c6058 in Dispatch () at ../xorg-server/dix/dispatch.c:508
#261866 dix_main (argc=13, argv=0x7fffb4fd8b78, envp=<optimized out>) at ../xorg-server/dix/main.c:272
#261867 main (argc=13, argv=0x7fffb4fd8b78, envp=<optimized out>) at ../xorg-server/dix/stubmain.c:34
19

So it does not seem the same bug as @SaltyMedic .

There is an infinite recursive loop starting in miPointerUpdateSprite function at ../xorg-server/mi/mipointer.c:431, this relates to your usage of vnc it seems.

With this nice backtrace you can report the bug to X11 developers.

I don’t think this has any to do with KDE software.

As a workaround you could try to use RDP with krpd for instance.

20

Thanks for your help. I’ll consider the workaround and report the bug elsewhere.