SUMMARY Running the latest git master build of Plasma Wayland on a Radeon 6700XT, the cursor appears darker than it should be. Sort of a "corrupted" state. I believe this is related to the gamma changes in MR https://invent.kde.org/plasma/kwin/-/merge_requests/1335 - using the full gamma ramp from the kernel driver causes an issue with the coloring of the cursor. This happens under X11 as well, and not just with Plasma. Under X11, the issue can be mitigated by using the modesetting driver and disabling the UseGammaLUT option. It looks like this is an issue with amdgpu, there has been an open issue over for quite a while: https://gitlab.freedesktop.org/drm/amd/-/issues/1513 I would grab a screenshot, but it doesn't show up well. The best example is in the issue above. Submitting this for awareness and tracking. SOFTWARE/OS VERSIONS Operating System: Arch Linux Kernel Version: 5.15.7-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor Memory: 15.6 GiB of RAM Graphics Processor: AMD Radeon RX 6700 XT
As suspected, reverting these commits in kwin made the cursor appear normal again: 3fb14035 backends/drm: only use atomic gamma size with AMS 4206046f Re-enable proper gamma ramps with AMS I mispoke on the MR - the correct MR is: https://invent.kde.org/plasma/kwin/-/merge_requests/1472
If really necessary we can turn off proper gamma once again... but I'd rather not hide driver breakage all the time, especially not if it reduces color accuracy. This should be fixed upstream