https://bugs.kde.org/show_bug.cgi?id=424398
Bug ID: 424398
Summary: Low fps in Wayland session with AMD GPU
Product: kwin
Version: 5.19.3
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: matejm98m...@gmail.com
Target Milestone: ---
SUMMARY
By just moving my cursor around I can push the fps down as low as 20fps.
I am not doing anything else with my laptop, the CPU is idle. Htop shows higher
CPU usage for kwin_wayland process up to 40% (of one core) on a Ryzen 5 3550H.
This issue is only present on Wayland. Gnome Wayland is not affected. If there
is any type of log or something like that I can provide it. I use fractional
scaling but disabling it doesn't make a difference. I have a 60Hz screen set to
60Hz. The fps is not always low, now while I am writing this report it is at 60
but when I switch apps or move my cursor it goes down and needs a while to
recover (raise back to 60).
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