I have the same issue now.
AMD radeon RX 5700 crashed and froze the whole Desktop after watching Youtube more than 50 min in Vivaldi browser with hardware accelerated.
- Branch: Manjaro KDE latest version (stable branch)
- GPU: Radeon RX 5700
- Kernel version: 5.14.10-1-MANJARO
- Mesa version: 4.6 (Compatibility Profile) Mesa 21.2.3
- Xserver version: X.Org X Server 1.20.13, X Protocol Version 11, Revision 0
- Desktop manager and compositor: KDE
Output of journactl -b -1 -p 3 :
Okt 17 20:22:31 zesko kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring vcn_dec timeout, signaled seq=2315893, emitted seq=2315895
Okt 17 20:22:31 zesko kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process vivaldi-bin pid 45233 thread vivaldi-bi:cs0 pid 45253
The similar bug report: