https://bugs.kde.org/show_bug.cgi?id=514828
Bug ID: 514828
Summary: Black screen after switching windows
Classification: Plasma
Product: kwin
Version First 6.5.5
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 188684
--> https://bugs.kde.org/attachment.cgi?id=188684&action=edit
kwin log via journalctl while reproducing the bug
SUMMARY
When switching between windows (Alt + Tab), sometimes I get a black screen, and
cannot recover from it except by killing kwin_wayland. This happens seemingly
at random, and can easily be reproduced (on my system) by repeatedly pressing
Alt + Tab for anywhere between 5 and 30 seconds - but also happens during
regular usage. It seems to happen between any two windows (including native KDE
apps), and also happens even if the windows are not overlapping or touching at
all.
STEPS TO REPRODUCE
1. Open any two application windows
2. Repeatedly press Alt + Tab, for anywhere between 5 and 30 seconds.
OBSERVED RESULT
Black screen
EXPECTED RESULT
One should be able to continue switching between windows indefinitely.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
Kernel: 6.18.5-arch1-1
NVIDIA driver version: 580.126.09
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.2.2
Qt Version: 6.10.1
ADDITIONAL INFORMATION
I have not been able to reproduce this under X11.
I am attaching a kwin log, abridged for readability - the observed error
messages flood the logs until kwin is killed.
I have tried to also produce a gdb trace but I can't seem to get debug symbols
to work - I'm not sure if it would be useful as it's not a crash per se, let me
know and I can try again again if necessary.
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