[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 #96 from Miroslaw <mirek190 at gmail.com> ---
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.

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