https://bugs.kde.org/show_bug.cgi?id=423230
Bug ID: 423230
Summary: Compositor only works at 60 FPS on a 144 Hz monitor
Product: kwin
Version: 5.19.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: sonichedgehog_hyperblas...@yahoo.com
Target Milestone: ---
Since switching to a 144 Hz monitor, I visually noticed that desktop
compositing still runs at 60 FPS in the X11 Plasma session (doesn't affect
Wayland). Normally it should run at the monitor's active refresh rate.
After some digging on the issue, I found a workaround that fixes this problem
for the time being: You need to edit ~/.config/kwinrc and manually add
MaxFPS=144 under the [Compositing] section. I can confirm this gets the
compositor working at the proper refresh rate and visibly appearing smoother,
however that should be detected and happening automatically.
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