https://bugs.kde.org/show_bug.cgi?id=482277
Bug ID: 482277
Summary: Plasma/KWin behaviors weird, even crashes when waking
up an 4K external display.
Classification: Plasma
Product: kwin
Version: 5.27.10
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: compositing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 166335
--> https://bugs.kde.org/attachment.cgi?id=166335&action=edit
journald log of the kwin crash.
SUMMARY
Almost every time I wake up my external 4K display, I can immediately see a lot
of glitched windows, and the system is temporarily unresponsive. Most times,
plasma can sooner restore everything so I can continue working. But, sometimes
the plasma can not restore. It crashed and all the windows already opened are
gone. Sometimes, both kwin and plasma do not survive, and my system sends me
back to sddm login screen.
I have attached the journald log and backtrace of one recent kwin crash and two
backtraces of plsama crashes which happened several days ago.
This problem has bugged me for at least 5 months, and after searching for a
long time I still don't understand what has happened.
STEPS TO REPRODUCE
1. Wait for the display to automatically switch off.
2. Use the mouse to wake up the display.
OBSERVED RESULT
A lot of glitches, sometimes the desktop and the compositor crashes.
EXPECTED RESULT
Plasma should work without any glitches and crashes.
SOFTWARE/OS VERSIONS
PC: Intel NUC 12 PRO featuring an i5-1240p
Linux: Arch Linux
Kernel: 6.7.6-zen1-2-zen
Graphics Platform: wayland
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.12
ADDITIONAL INFORMATION
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