| Summary: | Jitter | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | Alberto Salvia Novella <es20490446e> |
| Component: | compositing | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | REPORTED --- | ||
| Severity: | normal | ||
| Priority: | NOR | ||
| Version First Reported In: | 6.5.5 | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: | system-info.txt | ||
Record: https://youtu.be/S_psPtSO4fQ |
Created attachment 189095 [details] system-info.txt Desktop animations show quite inconsistent performance, in the form of jitter. Sometimes animations are butter-smooth, others they are completely choppy. I have tried isolating the cause, but I was unable to. The only differences I could tell are these: - If you install optimus-manager and nvidia-open, and use X11, animations are always smooth. On both the internal and external screen. Still they are inconsistent on Wayland. - If you run OBS on Wayland, with the display as source, animations will always show jitter. Things I have tried without perceiving a clear difference: - Using the modesetting driver, or nvidia-open, or nvidia proprietary. - In "/etc/profile.d/optimus.sh" doing "export __NV_PRIME_RENDER_OFFLOAD=1" and "export __GLX_VENDOR_LIBRARY_NAME="nvidia". Or the opposite "export __EGL_VENDOR_LIBRARY_FILENAMES="/usr/share/glvnd/egl_vendor.d/50_mesa.json"". - Using an external monitor, or only the internal one. - Setting multiple Kwin Environment Variables.