(In reply to Mathieu Belanger from comment #27)
> It did fix it for me too.

(In reply to Pierre-Eric Pelloux-Prayer from comment #28)
> Regarding sdma ring hangs: if you still have access to the affected machine
> using ssh, it would be helpful to add a comment with the following
> information:
> 
>   - the last dmesg lines (at least the "[drm:amdgpu_job_timedout [amdgpu]]
> *ERROR* ring sdma1 timeout, signaled seq=9871, emitted seq=9873" one)
>   - the output of : umr -R sdma0 (or sdma1 depending on which one failed)
> 
> Thanks!

Mathieu could you assist Pierre-Eric with this? 
I am currently on vacation and won't be able to debug or test further until
15th of September.