https://bugs.kde.org/show_bug.cgi?id=381834
Bug ID: 381834 Summary: Some applications crash and disable Kwin compositing if sync to VBlank is enabled Product: kwin Version: 5.10.3 Platform: Archlinux Packages OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: scene-opengl Assignee: kwin-bugs-n...@kde.org Reporter: redredempt...@protonmail.com Target Milestone: --- I was told to report the bug again and relate it to Kwin, even if only Krita triggers it at the moment. (https://bugs.kde.org/show_bug.cgi?id=381807) The steps I included in the previous bug report to prevent it from happen are still valid. Nevertheless, I found more traces relevant to the issue. Also, I can't provide any backtrace. ############################ (https://wiki.archlinux.org/index.php/NVIDIA/Troubleshooting#Avoid_screen_tearing_in_KDE_.28KWin.29) 1)Forcing a full composition pipeline. a)Solves the issue; screen tearing is not present, and Krita doesn't make Kwin crash/disable compositing. -The downside is that the OpenGL applications/games run choppy; However, suspending compositing with the hotkey - Alt+Shift+F12 fixes it. 2)Enabling triple buffering with a script in a directory /etc/profile.d/, and an entry in xorg.conf that enables triple buffering for the driver itself. a)The bug is present; Krita makes Kwin crash/disable compositing. Using either "Sync to V-blank" or "Allow Flipping" option in the NVIDIA driver settings have no effect to the bug. -If "Sync to V-blank" is enabled, V-Sync will not work upon restarting Kwin compositing after a crash. (Furthermore, Krita won't make Kwin crash in this case, even if V-Sync wasn't explicitly disabled by an user.) -If "Allow Flipping" is enabled, V-Sync will work upon restarting Kwin compositing after a crash. -- You are receiving this mail because: You are watching all bug changes.