https://bugs.kde.org/show_bug.cgi?id=430447
Bug ID: 430447
Summary: Display glitches and possibly wayland session crash on
hi-GPU load
Product: kwin
Version: 5.20.4
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: platform-wayland
Assignee: kwin-bugs-n...@kde.org
Reporter: wwconstan...@protonmail.com
Target Milestone: ---
SUMMARY
On high GPU load i have graphical glitches on my displays (multimonitor
configuration)
I tried to launch game (Cyberpunk 2077) through steam, and in places with hard
scenes i seem flickering lines on both displays(1st with fullscreen app and
secondary without it). When i stopped game or returning to menu, GPU loading
has lower and glitches stopped. If i don`t do this, wayland session can be
crashed and return me to login screen.
I didn`t seen similar reports from another users in Valve/Proton theme (i not
checked mesa) - most uses x11 session, and i didn`t seen similar reports from
GNOME wayland/sway users. As i think its compositor problem.
Game used wine(proton) + VKD3D-Proton DX12 to vulkan translator, and i didn`t
seen similar issue on his git branch. Sorry if i make wrong report
I tried disable second screen by system display settings, but glitches saves on
main screen, and i think multiscreen GPU use its not main reason
STEPS TO REPRODUCE
1. Install and Run Cyberpunk 2077 through wine (or maybe another app with
hi-gpu loading. Currently i seen this problem only with this game)
2. Go to place with use hi-gpu loading with dynamic scenes (on city) (higher
graphical settings can reproduce problem faster)
3. Look at glitches :)
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro(unstable branch)
KDE Plasma Version: 5.20.4
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
GPU Radeon RX560 4gb/ Mesa 21.0.0
Multiscreen configuration - first 2560x1080 second 1600x900
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