https://bugs.kde.org/show_bug.cgi?id=422018
Bug ID: 422018 Summary: Kwin OpenGL Graphical Glitches on Startup Product: kwin Version: 5.18.5 Platform: Manjaro OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: effects-various Assignee: kwin-bugs-n...@kde.org Reporter: kingofgamesy...@gmail.com Target Milestone: --- SUMMARY On my system, using OpenGL 2.0 or OpenGL 3.1 as the rendering backend introduces the following glitches during boot: - The cursor will vanish after a short period of time with no movement * Upon moving the cursor after this occurrence, a chunk of the screen around the cursor will temporarily revert to the way it was displayed at the time the cursor vanished. - The cursor may have a trail of cursors behind it (does not always occur). - Display settings are configured wrong (my second and third monitor are sometimes not detected, or only one of the two). NOTE: This is likely due to DisplayLink, and is probably outside the context of this ticket. There are two workarounds I have discovered for this bug. 1. Using XRender for the Rendering backend will fix this bug (though at the cost of disabling several desktop effects). 2. Logging out (but not rebooting!) and logging back in will fix the issue. STEPS TO REPRODUCE 1. Install Manjaro KDE on a system using Skylake Integrated Graphics (assumed - only one system tested) 2. Use OpenGL 3.1 as the rendering backend 3. Reboot OBSERVED RESULT The aforementioned cursor glitches (vanishing, cursor trail). EXPECTED RESULT No such glitches. SOFTWARE/OS VERSIONS Windows: N/A macOS: N/A Linux/KDE Plasma: Manjaro KDE stable (available in About System) KDE Plasma Version: 5.18.5 KDE Frameworks Version: 5.70.0 Qt Version: 5.14.2 ADDITIONAL INFORMATION inxi -Fxzc0: https://pastebin.com/m2Zrihng -- You are receiving this mail because: You are watching all bug changes.