https://bugs.kde.org/show_bug.cgi?id=494044
--- Comment #11 from Matt Fagnani <matt.fagn...@bell.net> --- (In reply to Vlad Zahorodnii from comment #10) > I do notice that the screen is not turned off completely though, i.e. > sometimes it's dim after 2 minutes I saw the kwin crashes about 30-50% of the time after the VM screen turned off and there were messages like Display not connected on a black screen in GNOME Boxes, then I moved the mouse over the VM screen and the lock screen was briefly shown and Plasma was shown with drkonqi handling the kwin crash. If the VM's screen didn't shut off completely like that, the problem didn't usually happen. I reproduced the crash again and "kwin_wayland_drm: atomic commit failed: Invalid argument" was the last error before the crash. I'll submit the automatic report. There were lock screen journal errors like "kscreenlocker_greet[4594]: Failed to write to the pipe: Bad file descriptor." at times. The screen remained dim incorrectly after the kwin crashes. Given that the kwin and gpu errors/warnings in the journal started appearing 1-2 min before the crashes, they might be related to the automatic dimming which I had set to 30 s for the last 3 kwin crashes I saw. Sometimes the kwin and gpu journal errors were shown, but kwin didn't crash. I think the virgl driver passes OpenGL calls to the GPU, so there might be differences based on the GPU and its drivers. My system has an AMD A10-9620P CPU with integrated Radeon R5 GPU made in 2017. Thanks. -- You are receiving this mail because: You are watching all bug changes.
