Since a system upgrade on 19 June 2026, connecting my DisplayLink dock during a Plasma Wayland session crashes kwin_wayland (SIGSEGV) within about a second and drops me back to SDDM. Undocked Wayland is stable. X11 with the same dock works. Wayland-with-dock worked fine before the upgrade, so this is a regression.
System
KDE Neon (Ubuntu 24.04 base), Plasma 6.7.0, KWin 6.7.0
Kernel 6.17.0-35-generic (also reproduced on 6.17.0-29)
ThinkPad T14 Gen 3, Intel Alder Lake, Iris Xe (i915)
DisplayLink USB 3.0 dock (USB ID 17e9:6000), 2× 1080p externals
DisplayLink proprietary driver + evdi 1.14.16 (DKMS, builds and loads cleanly on both kernels)
Wayland, dock connected: kwin_wayland SIGSEGV almost immediately, session dies.
X11, dock connected: works, both externals drive fine — but DisplayLinkManager CPU is much higher than before the upgrade (~55–60% driving two 1080p outputs).
Reproduces on both installed kernels, so not kernel-specific.
Evidence
Kernel log at the moment of the crash — software rasteriser (llvmpipe) worker threads segfaulting:
kernel: llvmpipe-9[...]: segfault at 900 ip ... error 4
kernel: llvmpipe-5[...]: segfault at 700 ...
kernel: llvmpipe-4[...]: segfault at b00 ...
kwin_wayland coredump:
Core was generated by `/usr/bin/kwin_wayland --wayland-fd 7 --socket wayland-0 --xwayland-fd 8 ...'
Program terminated with signal SIGSEGV
... Can't open file /dev/dri/card0 ... anon_inode:i915.gem ... (file-backed mapping notes)
(Backtrace currently unsymbolicated — debuginfod was disabled in the drkonqi batch run. I can post a full debuginfod-resolved backtrace on request.)
Interpretation: KWin composites the EVDI/DisplayLink output through the llvmpipe software path (EVDI has no hardware GL), and that path segfaults under the new Mesa/LLVM. This matches the mechanism in DisplayLink/evdi #444 (llvmpipe mmaps the evdi dumb buffer; concurrent access faults).
Tried, no effect
LP_NUM_THREADS=1 (single-thread llvmpipe, the #444 workaround). Confirmed live in the session via systemctl --user show-environment. Still crashes.
KWIN_DRM_NO_AMS=1 (ARGB8888->XRGB8888, the evdi #459 / KDE bug 475922 workaround). No effect.
Ruled out a stale module: evdi 1.14.16 is current, DKMS builds clean, loads, in use.
Question
Is this a known regression in the Plasma 6.7.0 jump or the Mesa 25.2.8 build1->build2 / libllvm20 update, in the llvmpipe path used to composite EVDI outputs on Wayland? Is there a way to force the EVDI output to be composited on the iGPU instead of falling back to llvmpipe?
References
DisplayLink/evdi #444 — llvmpipe fault on evdi dumb buffer
I don’t have a solution, but I can say, that I run into the same issue.
On my OS I can update LLVM and KDE independently, so I can say, that only KDE 6.7 causes the crash. The LLVM-libs version I currently use is 22.1.6-1, my Mesa version is 26.1.2-2 and my EVDI version is 1.14.16-1 (I am on a rolling release distro, which is why i am on more current Versions than John3). All of these Versions work just fine with KDE 6.6, but die with 6.7.
And since I can’t seem to edit my Post above, here, in a seperate Post, is my DMESG output, from the first output of the EVDI Kernel Module up until I disconnected the Dock (a mod might want to merge this Post with my Post above):
DMESG Output
[ 12.395370] evdi: [I] Initialising logging on level 4
[ 12.395373] evdi: [I] Atomic driver: yes
[ 12.683634] Bluetooth: hci0: Waiting for firmware download to complete
[ 12.684048] Bluetooth: hci0: Firmware loaded in 1692999 usecs
[ 12.684083] Bluetooth: hci0: Waiting for device to boot
[ 12.699061] Bluetooth: hci0: Device booted in 14648 usecs
[ 12.699442] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-19-0-4.ddc
[ 12.701069] Bluetooth: hci0: Applying Intel DDC parameters completed
[ 12.702056] Bluetooth: hci0: Firmware revision 0.4 build 83 week 7 2026
[ 12.704061] Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported.
[ 12.772664] Bluetooth: MGMT ver 1.23
[ 12.776499] NET: Registered PF_ALG protocol family
[ 12.920964] [drm] Initialized evdi 1.14.16 for evdi.0 on minor 0
[ 12.920976] evdi: [I] Evdi platform_device create
[ 12.920978] evdi: [I] Attaching to usb:2-1.1
[ 12.924232] evdi: [I] (card0) Opened by Task 1226 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 12.924911] evdi: [I] (card0) Added i2c adapter bus number 16
[ 12.924913] evdi: [I] (card0) Connected with Task 1234 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 12.924915] evdi: [I] (card0) Connector state: connected
[ 12.925518] [drm] Initialized evdi 1.14.16 for evdi.1 on minor 2
[ 12.925526] evdi: [I] Evdi platform_device create
[ 12.925528] evdi: [I] Attaching to usb:2-1.1
[ 12.927652] evdi: [I] (card2) Opened by Task 1239 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 12.928057] evdi: [I] (card2) Added i2c adapter bus number 17
[ 12.928059] evdi: [I] (card2) Connected with Task 1247 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 12.928061] evdi: [I] (card2) Connector state: connected
[ 13.085274] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 13.176675] u32 classifier
[ 13.176679] Performance counters on
[ 13.176679] input device check on
[ 13.176680] Actions configured
[ 13.179942] nvme nvme0: using unchecked data buffer
[ 13.283938] evdi: [I] (card0) Opened by Task 1090 (systemd-logind) of process 1090 (systemd-logind)
[ 13.284017] evdi: [I] (card0) Opened by Task 1479 (kwin_wayland) of process 1479 (kwin_wayland)
[ 13.293596] evdi: [I] (card0) Opened by Task 1479 (kwin_wayland) of process 1479 (kwin_wayland)
[ 13.300719] evdi: [I] (card2) Opened by Task 1090 (systemd-logind) of process 1090 (systemd-logind)
[ 13.300822] evdi: [I] (card2) Opened by Task 1479 (kwin_wayland) of process 1479 (kwin_wayland)
[ 13.307346] evdi: [I] (card2) Opened by Task 1479 (kwin_wayland) of process 1479 (kwin_wayland)
[ 13.321497] evdi: [I] (card0) Connector state: connected
[ 13.321575] evdi: [I] (card0) Edid property set
[ 13.321587] evdi: [W] evdi_mode_valid:117 (card0) Mode 2560x1440@165 rejected. Reason: mode pixel clock too high
[ 13.331802] evdi: [I] (card2) Connector state: connected
[ 13.331856] evdi: [I] (card2) Edid property set
[ 14.176696] usb 3-1.4: reset high-speed USB device number 10 using xhci_hcd
[ 14.498864] Bluetooth: RFCOMM TTY layer initialized
[ 14.498870] Bluetooth: RFCOMM socket layer initialized
[ 14.498871] Bluetooth: RFCOMM ver 1.11
[ 14.606673] evdi: [I] (card2) Notifying display power state: on
[ 14.606681] evdi: [I] (card2) Notifying mode changed: 1920x1080@60; bpp 32; pixel format AB24 little-endian (0x34324241)
[ 14.606683] evdi: [I] (card2) Notifying display power state: on
[ 14.606778] evdi: [I] (card0) Notifying display power state: on
[ 14.606780] evdi: [I] (card0) Notifying mode changed: 2560x1440@144; bpp 32; pixel format AB24 little-endian (0x34324241)
[ 14.606782] evdi: [I] (card0) Notifying display power state: on
[ 14.650576] evdi: [W] evdi_painter_connect:943 (card0) Double connect - replacing 000000009d3073fa with 000000009d3073fa
[ 14.650580] evdi: [I] (card0) Connected with Task 1244 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 14.650584] evdi: [I] (card0) Connector state: connected
[ 14.660638] evdi: [W] evdi_painter_connect:943 (card2) Double connect - replacing 00000000bb379590 with 00000000bb379590
[ 14.660644] evdi: [I] (card2) Connected with Task 1241 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 14.660646] evdi: [I] (card2) Connector state: connected
[ 14.827395] evdi: [I] (card0) Opened by Task 1479 (kwin_wayland) of process 1479 (kwin_wayland)
[ 14.827417] evdi: [I] (card2) Opened by Task 1479 (kwin_wayland) of process 1479 (kwin_wayland)
[ 15.867605] evdi: [I] (card0) Notifying mode changed: 2560x1440@144; bpp 32; pixel format AB24 little-endian (0x34324241)
[ 15.867614] evdi: [I] (card0) Notifying display power state: on
[ 15.871010] evdi: [I] (card2) Notifying mode changed: 1920x1080@60; bpp 32; pixel format AB24 little-endian (0x34324241)
[ 15.871017] evdi: [I] (card2) Notifying display power state: on
[ 15.872160] llvmpipe-3[1615]: segfault at e00 ip 00007f069cd5c8bc sp 00007f0681ffa480 error 6 likely on CPU 7 (core 7, socket 0)
[ 15.872167] Code: 61 e3 c5 e9 69 d3 c5 f1 61 d8 c5 f1 69 c0 c5 d9 6c ca c5 d9 6d d2 c5 e1 6c e0 c5 e1 6d c0 8d 14 00 48 63 d2 8d 34 40 48 63 f6 f9 7f 09 c5 f9 7f 14 01 c5 f9 7f 24 11 c5 f9 7f 04 31 48 89 ec
[ 17.001908] evdi: [I] (card2) Closed by Task 1521 (QDBusConnection) of process 1479 (kwin_wayland)
[ 17.001947] evdi: [I] (card2) Closed by Task 1521 (QDBusConnection) of process 1479 (kwin_wayland)
[ 17.001978] evdi: [I] (card0) Closed by Task 1521 (QDBusConnection) of process 1479 (kwin_wayland)
[ 17.002011] evdi: [I] (card0) Closed by Task 1521 (QDBusConnection) of process 1479 (kwin_wayland)
[ 17.007330] evdi: [I] (card2) Notifying display power state: off
[ 17.007350] evdi: [I] (card2) Closed by Task 2256 ((sd-close)) of process 2256 ((sd-close))
[ 17.007663] evdi: [I] (card0) Notifying display power state: off
[ 17.007674] evdi: [I] (card0) Closed by Task 2258 ((sd-close)) of process 2258 ((sd-close))
[ 17.024314] evdi: [I] (card2) Closed by Task 1780 (Xwayland) of process 1780 (Xwayland)
[ 17.024328] evdi: [I] (card0) Closed by Task 1780 (Xwayland) of process 1780 (Xwayland)
[ 17.476723] evdi: [I] (card0) Opened by Task 1090 (systemd-logind) of process 1090 (systemd-logind)
[ 17.476814] evdi: [I] (card0) Opened by Task 2257 (kwin_wayland) of process 2257 (kwin_wayland)
[ 17.483876] evdi: [I] (card0) Opened by Task 2257 (kwin_wayland) of process 2257 (kwin_wayland)
[ 17.490895] evdi: [I] (card2) Opened by Task 1090 (systemd-logind) of process 1090 (systemd-logind)
[ 17.491019] evdi: [I] (card2) Opened by Task 2257 (kwin_wayland) of process 2257 (kwin_wayland)
[ 17.497544] evdi: [I] (card2) Opened by Task 2257 (kwin_wayland) of process 2257 (kwin_wayland)
[ 17.511309] evdi: [I] (card0) Connector state: connected
[ 17.511390] evdi: [I] (card0) Edid property set
[ 17.511443] evdi: [W] evdi_mode_valid:117 (card0) Mode 2560x1440@165 rejected. Reason: mode pixel clock too high
[ 17.521917] evdi: [I] (card2) Connector state: connected
[ 17.521972] evdi: [I] (card2) Edid property set
[ 17.820679] evdi: [I] (card2) Notifying display power state: on
[ 17.820690] evdi: [I] (card2) Notifying mode changed: 1920x1080@60; bpp 32; pixel format AR24 little-endian (0x34325241)
[ 17.820692] evdi: [I] (card2) Notifying display power state: on
[ 17.832697] evdi: [I] (card0) Notifying display power state: on
[ 17.832712] evdi: [I] (card0) Notifying mode changed: 2560x1440@144; bpp 32; pixel format AR24 little-endian (0x34325241)
[ 17.832714] evdi: [I] (card0) Notifying display power state: on
[ 18.400698] evdi: [I] (card0) Opened by Task 2257 (kwin_wayland) of process 2257 (kwin_wayland)
[ 18.400721] evdi: [I] (card2) Opened by Task 2257 (kwin_wayland) of process 2257 (kwin_wayland)
[ 18.853251] input: solaar-keyboard as /devices/virtual/input/input29
[ 19.057462] llvmpipe-12[2383]: segfault at d00 ip 00007f65980688bc sp 00007f64e77fd480 error 6
[ 19.057462] llvmpipe-13[2384]: segfault at e00 ip 00007f65980688bc sp 00007f64e6ffc480 error 6
[ 19.057470] likely on CPU 9 (core 1, socket 0)
[ 19.057470] likely on CPU 1 (core 1, socket 0)
[ 19.057472] Code: 61 e3 c5 e9 69 d3 c5 f1 61 d8 c5 f1 69 c0 c5 d9 6c ca c5 d9 6d d2 c5 e1 6c e0 c5 e1 6d c0 8d 14 00 48 63 d2 8d 34 40 48 63 f6 f9 7f 09 c5 f9 7f 14 01 c5 f9 7f 24 11 c5 f9 7f 04 31 48 89 ec
[ 19.057472] Code: 61 e3 c5 e9 69 d3 c5 f1 61 d8 c5 f1 69 c0 c5 d9 6c ca c5 d9 6d d2 c5 e1 6c e0 c5 e1 6d c0 8d 14 00 48 63 d2 8d 34 40 48 63 f6 f9 7f 09 c5 f9 7f 14 01 c5 f9 7f 24 11 c5 f9 7f 04 31 48 89 ec
[ 20.272230] evdi: [I] (card2) Closed by Task 2392 (kwin_wayland) of process 2257 (kwin_wayland)
[ 20.272251] evdi: [I] (card2) Closed by Task 2392 (kwin_wayland) of process 2257 (kwin_wayland)
[ 20.272261] evdi: [I] (card0) Closed by Task 2392 (kwin_wayland) of process 2257 (kwin_wayland)
[ 20.272275] evdi: [I] (card0) Closed by Task 2392 (kwin_wayland) of process 2257 (kwin_wayland)
[ 20.274575] evdi: [I] (card2) Closed by Task 2412 (Xwayland) of process 2412 (Xwayland)
[ 20.274583] evdi: [I] (card0) Closed by Task 2412 (Xwayland) of process 2412 (Xwayland)
[ 20.469595] evdi: [I] (card2) Notifying display power state: off
[ 20.469606] evdi: [I] (card2) Closed by Task 2929 ((sd-close)) of process 2929 ((sd-close))
[ 20.469870] evdi: [I] (card0) Notifying display power state: off
[ 20.469878] evdi: [I] (card0) Closed by Task 2930 ((sd-close)) of process 2930 ((sd-close))
[ 20.720342] evdi: [I] (card0) Opened by Task 1090 (systemd-logind) of process 1090 (systemd-logind)
[ 20.720623] evdi: [I] (card0) Opened by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 20.728027] evdi: [I] (card0) Opened by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 20.735586] evdi: [I] (card2) Opened by Task 1090 (systemd-logind) of process 1090 (systemd-logind)
[ 20.735747] evdi: [I] (card2) Opened by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 20.745229] evdi: [I] (card2) Opened by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 20.759342] evdi: [I] (card0) Connector state: connected
[ 20.759416] evdi: [I] (card0) Edid property set
[ 20.759468] evdi: [W] evdi_mode_valid:117 (card0) Mode 2560x1440@165 rejected. Reason: mode pixel clock too high
[ 20.768851] evdi: [I] (card2) Connector state: connected
[ 20.768903] evdi: [I] (card2) Edid property set
[ 21.329563] usb 3-5: USB disconnect, device number 7
[ 21.329567] usb 3-5.2: USB disconnect, device number 12
[ 21.330207] usb 3-5.5: USB disconnect, device number 13
[ 21.361584] usb 2-1: USB disconnect, device number 2
[ 21.361588] usb 2-1.1: USB disconnect, device number 3
[ 21.362177] cdc_ncm 2-1.1:1.5 enp0s13f0u1u1i5: unregister ‘cdc_ncm’ usb-0000:00:0d.0-1.1, CDC NCM (SEND ZLP)
[ 21.410964] usb 2-1.2: USB disconnect, device number 4
[ 21.425633] evdi: [I] (card0) Disconnected from Task 1228 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 21.425638] evdi: [I] (card0) Removing i2c adapter bus number 16
[ 21.425916] evdi: [I] (card0) Closed by Task 1228 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 21.426877] evdi: [I] (card2) Disconnected from Task 1236 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 21.426881] evdi: [I] (card2) Removing i2c adapter bus number 17
[ 21.427059] evdi: [I] (card2) Closed by Task 1236 (DisplayLinkMana) of process 1210 (DisplayLinkMana)
[ 21.518980] evdi: [I] (card0) Closed by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 21.519095] evdi: [I] (card0) Closed by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 21.519594] evdi: [I] (card0) Closed by Task 3207 ((sd-close)) of process 3207 ((sd-close))
[ 21.524335] evdi: [I] (card2) Closed by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 21.524441] evdi: [I] (card2) Closed by Task 2902 (kwin_wayland) of process 2902 (kwin_wayland)
[ 21.524795] evdi: [I] (card2) Closed by Task 3208 ((sd-close)) of process 3208 ((sd-close))
I’m having a similar issue. Not sure it’s exactly the same. Included some messages below.
Summary
Jun 21 20:49:57 hedgie systemd[1]: Starting displaylink-driver.service - DisplayLink Driver Service…
Jun 21 20:49:57 hedgie kernel: evdi: loading out-of-tree module taints kernel.
Jun 21 20:49:57 hedgie kernel: evdi: [I] Initialising logging on level 4
Jun 21 20:49:57 hedgie kernel: evdi: [I] Atomic driver: yes
Jun 21 20:49:57 hedgie kernel: evdi: [I] Increasing device count to 4
Jun 21 20:49:57 hedgie kernel: [drm] Initialized evdi 1.14.16 for evdi.0 on minor 0
Jun 21 20:49:57 hedgie kernel: evdi: [I] Evdi platform_device create
Jun 21 20:49:57 hedgie kernel: [drm] Initialized evdi 1.14.16 for evdi.1 on minor 2
Jun 21 20:49:57 hedgie kernel: evdi: [I] Evdi platform_device create
Jun 21 20:49:57 hedgie kernel: [drm] Initialized evdi 1.14.16 for evdi.2 on minor 3
Jun 21 20:49:57 hedgie kernel: evdi: [I] Evdi platform_device create
Jun 21 20:49:57 hedgie kernel: [drm] Initialized evdi 1.14.16 for evdi.3 on minor 4
Jun 21 20:49:57 hedgie kernel: evdi: [I] Evdi platform_device create
Jun 21 20:49:57 hedgie systemd[1]: Started displaylink-driver.service - DisplayLink Driver Service.
Jun 21 20:49:57 hedgie audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=‘unit=displaylink-driver comm=“systemd” exe=“/usr/lib/systemd/systemd” hostname=? addr=? terminal=? res=success’
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Opened by Task 1372 (systemd-logind) of process 1372 (systemd-logind)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Opened by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Opened by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kwin_wayland[2324]: Failed to open drm node: “”
Jun 21 20:49:57 hedgie kwin_wayland[2324]: couldn’t find dev node for drm device
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Opened by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Closed by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Closed by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card0) Closed by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card3) Opened by Task 1372 (systemd-logind) of process 1372 (systemd-logind)
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card3) Opened by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kwin_wayland_wrapper[2324]: MESA-LOADER: failed to retrieve device information
Jun 21 20:49:57 hedgie kwin_wayland_wrapper[2324]: MESA-LOADER: failed to retrieve device information
…
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.339458Z#033[0m #033[31mERROR#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m could not initialize GPU controller at ‘/sys/class/drm/card3/device’: PCI_SLOT_NAME entry missing in ‘uevent’
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.339856Z#033[0m #033[32m INFO#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m initialized amdgpu controller for GPU 1002:15E7-1028:0B7E-0000:04:00.0 at ‘/sys/class/drm/card1/device’
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.339879Z#033[0m #033[31mERROR#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m could not initialize GPU controller at ‘/sys/class/drm/card4/device’: PCI_SLOT_NAME entry missing in ‘uevent’
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.339896Z#033[0m #033[31mERROR#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m could not initialize GPU controller at ‘/sys/class/drm/card2/device’: PCI_SLOT_NAME entry missing in ‘uevent’
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.339912Z#033[0m #033[31mERROR#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m could not initialize GPU controller at ‘/sys/class/drm/card0/device’: PCI_SLOT_NAME entry missing in ‘uevent’
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.339917Z#033[0m #033[32m INFO#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m GPU list reloaded with 1 devices, reapplying configuration
Jun 21 20:49:57 hedgie kwin_wayland_wrapper[2324]: MESA-LOADER: failed to retrieve device information
Jun 21 20:49:57 hedgie bash[1700]: #033[2m2026-06-22T00:49:57.340712Z#033[0m #033[32m INFO#033[0m #033[2mlact_daemon::server::handler#033[0m#033[2m:#033[0m configuration applied
Jun 21 20:49:57 hedgie kernel: evdi: [I] (card4) Opened by Task 2324 (kwin_wayland) of process 2324 (kwin_wayland)
Jun 21 20:49:57 hedgie kwin_wayland_wrapper[2324]: MESA-LOADER: failed to retrieve device information
Jun 21 20:49:57 hedgie kwin_wayland_wrapper[2324]: MESA-LOADER: failed to retrieve device information
I can confirm having the same error on EndeavourOS with the 7.0.12-arch1-1 Kernel and KDE Plasma 6.7.0. Rolling back kwin to 6.6.5-4 and kwin-x11 to 6.6.5-2 fixed the issue for me
