https://bugs.kde.org/show_bug.cgi?id=423911
Bug ID: 423911
Summary: "OpenGL compositing has crashed KWin in the past"
Product: kwin
Version: 5.18.5
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: darkpeng...@yandex.com
Target Milestone: ---
Pretty often (every few days), I notice tearing again, and that always means
that I have to go to system settings and "Re-enable OpenGL detection".
I had this problem on Ubuntu Bionic LTS, upgraded to Focal LTS hoping it would
be fixed there, but it is still a problem.
I have this on two systems, one with RadeonHD 5450 (radeon driver) and another
one with Radeon RX550 (AMDGPU+radeon).
The problem is, I don't even know how to catch this problem when it happens.
There is no error, I can only see that "it happened again IN THE PAST". It
might be happening more often after a reboot, or maybe after something else.
How do I catch this bug? Are there any logs to watch, or could I maybe ask it
to give me an error immediately when this happens?
Actually, I would be happy enough if I could disable OpenGL "detection" and
simply force the settings I know are correct. If it crashes, it should just
restart automatically. (I mean, the current behavior is good, but additionally
it would be nice to have a way to disable it.)
SOFTWARE/OS VERSIONS:
Kubuntu 20.04 amd64
Kernel: 5.4.0-40-generic (HD5450) / 5.7.0-6.4-liquorix-amd64 (RX550)
KDE Plasma Version: 5.18.4
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
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