KDE Plasma Lock Screen completely frozen, unable to switch to TTY【CRITICAL】

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1

Hello everyone, I am experiencing a critical system freeze related to the KDE Plasma lock screen after closing the laptop lid.

  1. Action: I put my laptop to sleep by closing the lid while listening to a YouTube stream.
  2. Observation: When I opened the lid this morning (around 7:00 AM), the lock screen appeared, but the displayed time was stuck at a much earlier time (around 1:00 AM).
  3. Result: The entire screen was completely frozen. I cannot interact with the lock screen (no response to mouse/keyboard input).
    Crucially, I cannot switch to a TTY.
    The system is entirely unresponsive. The only solution was a hard reboot.

My ENV:
Kernel | Linux 6.17.8-zen1-1-zen
DE | KDE Plasma 6.5.3
WM | KWin (Wayland)
CPU | Intel(R) Core™ i7-10610U (8) @ 4.90 GHz
GPU | Intel(R) CometLake-U GT2 [UHD Graphics]

Any suggestions on logs I should check for this specific issue?

Thank you.

…Ah, I use arch btw.

2

I’m having the same issue lately. I have a desktop and happens sometimes when I leave it idle and its going to sleep mode. I end up with a dimmed lock screen and it won’t react to anything other than a hard reset.

Operating System: CachyOS Linux
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.5-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor
Memory: 32 GiB of RAM (31.2 GiB usable)
Graphics Processor: AMD Radeon RX 9070 XT
Manufacturer: ASUS

Some of the last things I see in the logs before the hard reset in a spam of this:

Jan 12 19:37:52 cachy-os plasmashell[1237]: @@@@@ Error parsing JSON data: JSON.parse: Parse error
Jan 12 19:37:53 cachy-os plasmashell[1237]: @@@@@ Error parsing JSON data: JSON.parse: Parse error
Jan 12 19:37:54 cachy-os kwin_wayland[958]: Atomic modeset test failed! Invalid argument
Jan 12 19:37:54 cachy-os kwin_wayland[958]: Setting dpms mode failed!
Jan 12 19:37:54 cachy-os kwin_wayland[958]: Atomic modeset test failed! Invalid argument
Jan 12 19:37:54 cachy-os kwin_wayland[958]: Setting dpms mode failed!
Jan 12 19:37:54 cachy-os kwin_wayland[958]: Atomic modeset test failed! Invalid argument
Jan 12 19:37:54 cachy-os kwin_wayland[958]: Setting dpms mode failed!