SUMMARY When using kde 6.5.1 with kwin 6.5.1 and KWIN_USE_OVERLAYS=1 set then the whole desktop feels little choppy. I can really explain it but it feels like the framerate pacing is off. You can also feel it when you just move the cursor on the screen. i am not sure if this is related to the bug https://bugs.kde.org/show_bug.cgi?id=489952 But what i can say is that when i downgrade kwin from 6.5.1 to 6.4.91 then everything is very smooth and the inconsistencies are gone. I didn't try it yet with kwin 6.5.1 and KWIN_USE_OVERLAYS=0 . I found this when i downgraded kwin to 6.4.9 to workaround the mouse courser stuck on screen bug, for the game arc raiders, which is already fixed. STEPS TO REPRODUCE 1. Start some game and play or just move the cursor around the screen. OBSERVED RESULT little choppy movement, inconsistent framepacing ( idk if it is really framepacing but it feels kinda off) EXPECTED RESULT smooth. like with kwin 6.4.9 SOFTWARE/OS VERSIONS Operating System: CachyOS Linux KDE Plasma Version: 6.5.1 KDE Frameworks Version: 6.19.0 Qt Version: 6.10.0 Kernel Version: 6.17.3-273-tkg-eevdf-llvm (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X3D 8-Core Processor Memory: 32 GiB of RAM (31,3 GiB usable) Graphics Processor: AMD Radeon RX 7900 XTX Manufacturer: Gigabyte Technology Co., Ltd. Product Name: X570 AORUS MASTER System Version: -CF ADDITIONAL INFORMATION
for the overlay planes i did everything as described in https://invent.kde.org/plasma/kwin/-/merge_requests/7795 for the testing part. So disabling the rounded corner stuff and so on.
(In reply to timon2201 from comment #0) > But what i can say is that when i downgrade kwin from 6.5.1 to 6.4.91 then > everything is very smooth and the inconsistencies are gone. I didn't try it > yet with kwin 6.5.1 and KWIN_USE_OVERLAYS=0 . Do test that, this is almost certainly https://gitlab.freedesktop.org/drm/amd/-/issues/4358 I can't explain why it would be any different in 6.4.91 though, there weren't any significant overlay related changes since then
yes, it seems to be gone when i play with KWIN_USE_OVERLAYS not set at all and kwin 6.5.1
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🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.
FWIW commenting on the upstream bug report might help prioritize it a little bit. If it's reproducible on more than just my system, it should make things easier :)