Just apply the fix that appears in http://ubuntuforums.org/showthread.php?t=2121631&highlight=ping-wu
I've gotten the same problem. What I did to work around this problem:
Copypasta the next few lines and save.Code:#!/bin/sh case "$1" in thaw|resume) echo 500 > /sys/class/backlight/intel_backlight/brightness ;; *) ;; esac exit $?
Finally, make it executable:
The script might be a little different depending on your hardware. If it does not work, just find out the path to your backlights interface.