SUMMARY Minimising/Maximising windows in Plasma have choppy/laggy animations under Wayland - are not smooth. In addition, I have no idea if VLC player playback is the reason for these blue lines to appear when i watch the recorded video locally, or if they are not a playback problem but a problem with KWin/Plasma. STEPS TO REPRODUCE 1. Use a Wayland session 2. Minimise window 3. Maximise window OBSERVED RESULT Animations are not smooth. Somewhere arrow the middle of the animations there is a jump like dropped frame or i don't know what's the name for it. EXPECTED RESULT A nice smooth animation. SOFTWARE/OS VERSIONS Operating System: Kubuntu 21.04 KDE Plasma Version: 5.22.2 KDE Frameworks Version: 5.83.0 Qt Version: 5.15.2 Kernel Version: 5.11.0-22-lowlatency (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz Memory: 7,6 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620
Screencast: https://youtu.be/bLrVcjAWx0o
Cannot reproduce with Intel 10th gen i7 with the same iGPU.
*** This bug has been marked as a duplicate of bug 452119 ***