[Bug 112297] AMDGPU recovery does recover desktop to an unstable state

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112297

            Bug ID: 112297
           Summary: AMDGPU recovery does recover desktop to an unstable
                    state
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: not set
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: dbiro97 at gmail.com

I have got Radeon RX 5700 XT which has unstable driver. So that
amdgpu.gpu_recovery=1 flag would be helpful if even that could work well.
Unfortunately it doesn't.

My kernel's latest commit ID: 53dbc27ad5a93932ff1892a8e4ef266827d74a0f ( fix
AVFS handling with custom powerplay table) On branch drm-next-5.5
Display server: X11
WM: BSPWM
DM: Slim

Journalctl output:
https://pastebin.com/if4PYda7

The error is the "average" ring sdma0 timeout. After reset, the actual
application that caused the crash, stays on the screen, The screen is
flickering, vibrating, I'm frequently able to see some green rectangle at the
top of the screen with full width. But I can able to move mouse. Also I cannot
do anything else, because then BSPWM can switch workspaces (I can see it by the
type of the mouse cursor), but the crashed application stays on the screen
anyway, so I have to restart.

At least, I can save my work if I remember which workspace contained my work.

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