Comment 1 for bug 1838373

Created attachment 142557
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.