[Bug 108826] [GLK DSI] Black screen after grub - Ubuntu 18.04 - kernel latest tip 21.11.2018

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108826

--- Comment #97 from Stanislav Lisovskiy <stanislav.lisovskiy at intel.com> ---
(In reply to Miroslaw from comment #96)
> Panel "a" works ok now with the path ... until I sleep device ( Android or
> Linux ) ...when I wake up device the screen is totally black even backlight
> no works - only restart device helps ... until I sleep device again...
> I have the same result on panel "b" ( with that path but panel do not need
> it - just for test )...  waking up device from sleep  - ... only black
> screen..( when path is applied ) 
> 
> Summarize: 
> 
> Without the path:
> - panel "a" only works until kernel starts loading drm driver then is black
> but backlight works.
> - panel "b" - everything is ok.. no problems.
> 
> With the path
> - panel "a" works until you sleep device ( s3 or s4 for instance  ) then you
> have totally black screen - even backlight not working.
> 
> 
> - panel "b" works until you sleep device ( s3 or s4 for instance  ) then you
> have totally black screen - even backlight not working.

Can you please share your kernel config, that you use(which works)? Or I see
there is one in attachment - can I use that one?

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