Created attachment 161012 [details] journalctl output for a boot with an attempt to set Adaptive Sync to Always; system was manually reset after ~5s of freeze SUMMARY Full screen freeze (unable to move mouse cursor / switch to TTY) when either entering full screen with Adaptive Sync set to Automatic or trying to set Adaptive Sync to Always through Display Configuration. STEPS TO REPRODUCE 1. Have Adaptive Sync set to Automatic 2. Open Firefox and try to enter a full screen (F11) or 1. Open Display Configuration 2. Set Adaptive Sync to Always 3. Press Apply OBSERVED RESULT Screen freezes, mouse cursor is static, unable to switch to TTY EXPECTED RESULT No freeze SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20230813 KDE Plasma Version: 5.27.7 KDE Frameworks Version: 5.108.0 Qt Version: 5.15.10 Kernel Version: 6.4.9-1-default (64-bit) Graphics Platform: Wayland Processors: 14 × AMD Ryzen 9 7950X 16-Core Processor Memory: 31.3 GiB of RAM Graphics Processor: AMD Radeon RX 7900 XT Manufacturer: QEMU Product Name: Standard PC (Q35 + ICH9, 2009) System Version: pc-q35-8.0 ADDITIONAL INFORMATION I use a single 144Hz 4k monitor with 150% scaling. Note that even though I currently use a VM with GPU passthrough this behaviour was reproducible on bare metal. It might have been introduced several months ago since I remember full screen working fine previously on this installation.
Would like to add that full screen mode is not 100% smooth with Adaptive Sync set to Never too - when moving a mouse there are severe frame drops, mouse cursor is changing size and there are a lot of "kwin_wayland[1665]: kwin_screencast: Dropping a screencast frame because the compositor is slow" entries in system logs.
I see > Aug 16 21:19:03 MiWiFi-RA82-srv kernel: [drm:dc_dmub_srv_wait_idle [amdgpu]] *ERROR* Error waiting for DMUB idle: status=3 in your log, so this is almost certainly a driver bug. Please report it to https://gitlab.freedesktop.org/drm/amd/-/issues