[Bug 104064] (DC 4.15-rc2) WARNING: CPU: 4 PID: 75 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:601 dm_suspend+0x4e/0x60 [amdgpu]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104064

--- Comment #42 from taijian at posteo.de ---
(In reply to Alex Deucher from comment #41)

> Sorry, my impression from comment 29 was that messing the the OSI string
> fixed the issue.  Is that not the case?  Do you still need to force ATPX? 
> If we, we can just add a quirk so the driver does it automatically.

Ah, sorry if that was unclear. No, messing with the OSI string did help with
the intermittend crashing I was experiencing. The backlight patch by Harry in
#34 worked even better, though.

Forcing ATPX is still needed for the dGPU to properly power down when not in
use. Messing with the OSI string does absolutely nothing in that regard, only
forcing ATPX helps with that. So yes, either the option to force this behaviour
via the kcl or a driver quirk to do this would be very much appreciated!

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