https://bugs.kde.org/show_bug.cgi?id=428705
Bug ID: 428705
Summary: Choppy and laggy system on NVidia drivers
Product: kwin
Version: 5.20.2
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: j.mir.pra...@gmail.com
Target Milestone: ---
SUMMARY
Everything is slugish unless I force in kwinrc maxfps and refreshrate to 3x my
real refresh rate. Most noticible is video playback but also windows
animations.
STEPS TO REPRODUCE
1. Test Big Buck Bunny 60fps version on NVidia drivers in MPV (my setups have
60Hz monitors)
2. Change kwinrc file MaxFPS and RefreshRate in composition section to 3x your
refresh rate
3. Test the same video again
OBSERVED RESULT
Video is noticibly more fluid with that "hack". Without it, it is really not
suitable for any kind of video screening.
EXPECTED RESULT
Video (and overall system animations) are fluid without excesive manipulation
with related parameters.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE neon 5.20
(available in About System)
KDE Plasma Version: 5.20.2
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
ADDITIONAL INFORMATION
NVidia drivers 450
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