Comment 63 for bug 946311

With -fixed eDP1 is recognized ans seems to be enabled, but the screen is complete black. I tried to check with flash light, if the image there but no back light. But with this screen i can't see it.
Here is xrandr:
Screen 0: minimum 320 x 200, current 1600 x 1924, maximum 8192 x 8192
eDP1 connected 1600x900+0+1024 (normal left inverted right x axis y axis) 293mm x 164mm
   1600x900 60.0*+
VGA1 connected 1280x1024+320+0 (normal left inverted right x axis y axis) 338mm x 270mm
   1280x1024 60.0*+ 75.0
   1280x960 60.0
   1152x864 75.0
   1024x768 75.1 70.1 60.0
   832x624 74.6
   800x600 72.2 75.0 60.3 56.2
   640x480 72.8 75.0 66.7 60.0
   720x400 70.1
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)