Bug#850221: brightness, actual_brightness, bl_power

[solitone <solitone@mail.com>]

I've checked with ssh that, after resume, I have the following values in 
backlight files brightness, actual_brightness, and bl_power:

$ cat /sys/class/backlight/intel_backlight/brightness 
1388
$ cat /sys/class/backlight/intel_backlight/actual_brightness 
0
$ cat /sys/class/backlight/intel_backlight/bl_power 
4

Trying the following command from ssh has no effect--it doesn't change the 
value in bl_power, and the screen doesn't turn on:

$ xset -display :0 dpms force off

I get the issue everytime I hibernate with bl_power set to 4 (screen off).