https://bugs.kde.org/show_bug.cgi?id=500341
Bug ID: 500341
Summary: External monitor randomly blacking out for a few
seconds
Classification: Plasma
Product: kwin
Version: 6.3.1
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: bumblebeepllxd...@gmail.com
Target Milestone: ---
SUMMARY
External monitor sometimes blacks out for a few seconds and then returns.
Neither the monitor nor the system detects a disconnected screen. All apps
remain working all the time, even during blackout. When it returns everything
is fine. The blackouts don't seem to have a pattern, they just randomly happen.
Sometimes I don't get a single blackout for a few days, sometimes they happen
every few seconds. When using journalctl right after the blackout it shows two
identical warnings, one right after the other: "kwin_wayland[900]:
kwin_scene_opengl: 0x502: GL_INVALID_OPERATION error generated."
STEPS TO REPRODUCE:
1. Since it happens randomly, just use the computer until a blackout happens.
SYSTEM INFORMATION:
Linux: 6.13.2-arch1-1
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
ADDITIONAL INFORMATION
I use a laptop with an Intel iGPU and Nvidia RTX 4050 Mobile. It doesn't make a
difference whether the iGPU is turned off in the laptop's firmware or not.
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