450737 2022-02-23 07:48:38 +0000 5.24.2 break multi monitor setup on wayland 2022-03-18 17:40:24 +0000 1 1 4 Plasma kwin wayland-generic 5.24.2 Arch Linux Linux RESOLVED FIXED regression VHI major --- 1 wengxt kwin-bugs-null dennis.schridde globalunity nate xaver.hugl https://invent.kde.org/plasma/kwin/commit/85558234e1d86dc084cd2776cdb22799eaa9254b 5.24.3 0 oldest_to_newest 2107427 0 wengxt 2022-02-23 07:48:38 +0000 SUMMARY 5.24.2 may give me black screen on laptop when external monitor is plugged. The first bad commit is 29bc1173c70b2a31753c791aa60fb33ee320440a backends/drm: ignore enabled state of outputs for the lifetime of surfaces STEPS TO REPRODUCE 1. plugin second monitor 2. log in into kwin OBSERVED RESULT laptop screen is still showing tty or blank (but not operatable). adjust systemsetting doesn't help to restore it into a usable state. Downgrade to 5.24.1 works. EXPECTED RESULT screen show content correctly. SOFTWARE/OS VERSIONS Linux/KDE Plasma: 5.24.2 Archlinux KDE Frameworks Version: 5.91.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION 2107726 1 bug-janitor 2022-02-24 04:54:25 +0000 A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/2067 2107727 2 xaver.hugl 2022-02-24 04:55:31 +0000 I'm relatively certain that the MR should fix it but could you test it to make sure? I don't have a multi-gpu system 2107855 3 wengxt 2022-02-24 22:12:01 +0000 (In reply to Zamundaaa from comment #2) > I'm relatively certain that the MR should fix it but could you test it to > make sure? I don't have a multi-gpu system I manually cherry-pick against Plasma/5.24 and it seems to fix my issue, thanks! 2107859 4 xaver.hugl 2022-02-24 22:38:16 +0000 Git commit 85558234e1d86dc084cd2776cdb22799eaa9254b by Xaver Hugl. Committed on 24/02/2022 at 21:48. Pushed by zamundaaa into branch 'Plasma/5.24'. backends/drm: fix multi gpu In 5.24 there's still multiple egl backends, only outputs of the relevant gpu may be handled M +2 -2 src/backends/drm/egl_gbm_backend.cpp https://invent.kde.org/plasma/kwin/commit/85558234e1d86dc084cd2776cdb22799eaa9254b 2110764 5 xaver.hugl 2022-03-11 17:53:29 +0000 *** Bug 450871 has been marked as a duplicate of this bug. *** 2111846 6 dennis.schridde 2022-03-18 17:40:24 +0000 The update has just landed in Fedora 35. I can confirm that the issue is fixed. Thanks!