[Bug 211649] "drm/amd/display: reuse current context instead of recreating one" cause hdmi hotplug blackscreen on amdgpu

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=211649

--- Comment #5 from Nicholas Kazlauskas (nicholas.kazlauskas at amd.com) ---
It would be good to know what OS/Userspace this is, I don't think I've seen
anything that has atomic check failures on nearly every flip, eg:

[  179.142898] [drm:amdgpu_dm_atomic_check [amdgpu]] Atomic check failed with
err: -22

Black screen comes from the page-flip timeout, but it's hard to say what the
root cause is.

When the screen is black can you cat the DTN log and then attach the result to
this ticket?

cat /sys/kernel/debug/dri/0/amdgpu_dm_dtn_log

Thanks!

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