[Bug 108826] New: 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

            Bug ID: 108826
           Summary: Black screen after grub - Ubuntu 18.04 -  kernel
                    latest tip 21.11.2018
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mirek190 at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 142557
  --> https://bugs.freedesktop.org/attachment.cgi?id=142557&action=edit
kernel log

The screen after the grub is getting black ( backlight is still working ).  
System is booting normally - after that backlight screen is working .. and
black all the time.
I can control brightness by shortcuts.
If connect HDMI cable then on the new via HDMI the screen works perfect but on
the device screen is still black unfortunately .

I attached the kernel.



- edid from windows 10 

Monitor
  Model name............... WLY-10102FHD
  Windows description...... Generic PnP Monitor
  Manufacturer............. AUO
  Plug and Play ID......... AUO17D8
  Serial number............ n/a
  Manufacture date......... 2013, ISO week 11
  Filter driver............ None
  -------------------------
  EDID revision............ 1.4
  Input signal type........ Digital
  Color bit depth.......... 8 bits per primary color
  Color encoding formats... RGB 4:4:4, YCrCb 4:4:4
  Screen size.............. 140 x 220 mm (10,3 in)
  Power management......... Active off/sleep
  Extension blocs.......... None
  -------------------------
  DDC/CI................... n/a

Color characteristics
  Default color space...... sRGB
  Display gamma............ 3,55
  Red chromaticity......... Rx 0,625 - Ry 0,340
  Green chromaticity....... Gx 0,285 - Gy 0,605
  Blue chromaticity........ Bx 0,148 - By 0,063
  White point (default).... Wx 0,281 - Wy 0,309
  Additional descriptors... None



Thanks for any help.

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