https://bugzilla.kernel.org/show_bug.cgi?id=67571
--- Comment #5 from Alex Deucher alexdeucher@gmail.com --- (In reply to Eric Valette from comment #4)
Thanks. Indeed it fixes the bug that carsh the kernel buy I still have this:
[drm] ib test on ring 0 succeeded in 0 usecs [ 27.400271] [drm] ib test on ring 3 succeeded in 1 usecs [ 37.421526] radeon 0000:00:01.0: GPU lockup CP stall for more than 10001msec [ 37.421559] radeon 0000:00:01.0: GPU lockup (waiting for 0x0000000000000004 last fence id 0x0000000000000002 on ring 5) [ 37.421570] [drm:uvd_v1_0_ib_test] *ERROR* radeon: fence wait failed (-35). [ 37.441641] [drm:radeon_ib_ring_tests] *ERROR* radeon: failed testing IB on ring 5 (-35).
Make sure you have the uvd and latest rlc ucode installed in order to use UVD.
[ 37.441664] [drm] Found smc ucode version: 0x00010200 [ 38.411143] [drm:dce4_afmt_write_speaker_allocation] *ERROR* Couldn't read Speaker Allocation Data Block: 0
This error is harmless, it's just telling you that the monitor provides invalid speak allocation information. Audio support should still work.
[ 42.249879] [drm] Disabling audio 0 support
Can you attach your full dmesg log? You should only see this message during suspend, shutdown, or gpu reset. This is unrelated to patch.
Does this mean I will get no audio via HDMI?
You should still get audio unless the GPU is hung and the driver is not able to reset it.