[Bug 67571] BUG: unable to handle kernel paging in amd E350 hdmi init

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https://bugzilla.kernel.org/show_bug.cgi?id=67571

--- Comment #5 from Alex Deucher <alexdeucher@xxxxxxxxx> ---
(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.

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