[Bug 216119] 087451f372bf76d breaks hibernation on amdgpu Radeon R9 390

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=216119

--- Comment #32 from Harald Judt (h.judt@gmx.at) ---
There still seem to be issues with the shared fb implementation and
hibernation. After resume, chvt to another vt causes the following errors in
dmesg:

[  975.920944] [drm:amdgpu_job_timedout] *ERROR* ring gfx timeout, but soft
recovered
[  986.160803] [drm:amdgpu_job_timedout] *ERROR* ring gfx timeout, but soft
recovered
[  996.400610] [drm:amdgpu_job_timedout] *ERROR* ring gfx timeout, but soft
recovered
[ 1006.640916] [drm:amdgpu_job_timedout] *ERROR* ring gfx timeout, but soft
recovered
[ 1016.880923] [drm:amdgpu_job_timedout] *ERROR* ring gfx timeout, but soft
recovered
[ 1027.120907] [drm:amdgpu_job_timedout] *ERROR* ring gfx timeout, but soft
recovered

And the machine gets stuck/freezes, except one can ssh in and reboot it. So
only the graphical display will not restore properly. Also, if I reboot the
machine and the error above does not occur, then the console (not X display) is
somehow misaligned, that is the messages are not printed on the most-left
column, but a bit more in the middle of the screen.

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