(In reply to Marko Popovic from comment #235)
> (In reply to Alex Deucher from comment #233)
> > Does attachment 145971 [details] [review] [review] [review] help?
> 
> No, this is for flip hangs that only happen in some games, random SDMA hangs
> are still present, but SDMA is disabled in MESA20 so for the timebeing it
> should be more stable.

They may be related. If the SDMA is waiting on a fence from the display engine
it would time out if that display fence never triggers.