Created attachment 178666 [details] Opening the JetBrains ToolBox for the first time after boot SUMMARY Every time I open the JetBrains ToolBox it's glitching for a second. It's always glitching when I open it for the first time, and for the second and next openings it is glitching sometimes and sometimes not. STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.3-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 20 × 12th Gen Intel® Core™ i7-12700KF Memory: 31.2 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 4080 ADDITIONAL INFORMATION
kwin has a mechanism to avoid that glitch but an application has to opt in into the _NET_WM_SYNC_REQUEST protocol. Jetbrains Toolbox doesn't do that, so you see that glitch. Not a lot that we can do from the kwin side, it's a fundamental issue with X11.
I suggest to report this issue to Jetbrains developers asking to implement support for _NET_WM_SYNC_REQUEST, or even better look into supporting wayland mode natively. :)