Waiting for fences timed out on MacBook Pro 2019

[Alex Deucher]

On Mon, Jul 12, 2021 at 5:57 AM Tomasz Moń <desowin at gmail.com> wrote:
>
> Hello,
>
> I am having trouble getting Linux to run on MacBook Pro 2019 with
> Radeon Pro Vega 20 4 GB. Basically as soon as graphical user interface
> starts, the whole system freezes. This happens with every Linux kernel
> version I have tried over the last few months, including 5.13.

If this is a regression, can you bisect?

Alex


>
> Using SSH I have been able to read dmesg output:
> [  207.113144] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] *ERROR*
> Waiting for fences timed out!
> [  207.113168] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] *ERROR*
> Waiting for fences timed out!
> [  212.029866] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
> timeout, signaled seq=1022, emitted seq=1024
> [  212.030083] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process
> information: process Xorg pid 918 thread Xorg:cs0 pid 919
> [  212.030276] amdgpu 0000:03:00.0: amdgpu: GPU reset begin!
> [  216.030286] amdgpu 0000:03:00.0: amdgpu: failed to suspend display audio
> [  227.396593] applesmc: driver init failed (ret=-5)!
>
> How do I debug this further?
>
> Best regards,
> Tomasz Moń
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