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).