https://bugs.freedesktop.org/show_bug.cgi?id=73530

--- Comment #105 from Samir Ibradžić <sibradzic@gmail.com> ---
Created attachment 115837
  --> https://bugs.freedesktop.org/attachment.cgi?id=115837&action=edit
dmesg with debug patches from comments 88, 93, 95 & 97 applied

(In reply to Alex Deucher from comment #97)
> Created attachment 115782 [details] [review]
> more debugging
> 
> Can you attach your dmesg output with the attached patch?  Please include
> all the radeon related output.

Here is dmesg with 88, 93, 95 & 97 applied, it looks strange as non-zero DPCD
values are reported from beginning and they never change. Note that EFI
firmware does 'train' this eDP panel properly, as native resolution is set from
early boot, EFIfb console keeps the same resolution. I can even tell X to force
using fbdev driver, the resolution stays the same, resulting in zero flicker
and working display all the way from early boot to GUI login.

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