[Bug 100745] amdgpu fails to wake up DisplayPort DELL monitors with 'clock recovery failed'

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 21 04:12:44 UTC 2017


--- Comment #1 from Edward O'Callaghan <funfunctor at folklore1984.net> ---
OK, I had a short look into this,

So it seems that we have that,

 amdgpu_atombios_dp_aux_transfer() calls amdgpu_atombios_dp_process_aux_chan()

which has either a ucReplyStatus == 2 or 3 from atombios returned.

If you could please attach dmesg logs after running

 # echo 0xf > /sys/module/drm/parameters/debug

and waiting for the situation to reoccur that would be most useful.

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