[Bug 112407] [i915] eDP cannot light up after waking up from suspend the second time.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112407

Lakshmi <lakshminarayana.vudum at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
         Whiteboard|                            |Triaged

--- Comment #2 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to Yvonne from comment #0)
> Created attachment 146033 [details]
> dmesg log
> 
> Platform: CML Laptop with ALC711+ ALC1308+ ALC715 in SDW mode
> 
> Reproduce Steps:
> 
> 1.Do system reboot with HDMI/DP external port connected.
> 2.Enter suspend via "sudo rtcwake -m mem -s 10", and unplug HDMI/DP external
> port during suspend.
> 3.Enter suspend again after waking up from suspend in step2
> 
> Frequency:100%
> 
> Expected result:
> After step3, eDP should light up after waking up from suspend.
> 
What have you done to make eDP working after step3?

Can you attach the full dmesg from boot with kernel parameters drm.debug=0x1e
log_buf_len=4M.

Also, I would recommend to reproduce this issue using drm-tip
(https://cgit.freedesktop.org/drm-tip)

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