Fix the Backlight Problem After Suspend in Ubuntu 13.04 Raring Ringtail

Hello Linux Geeksters.

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If you also get the problem of no backlight in Ubuntu 13.04 after resuming from suspend or sleep, this
is what you have to do to fix it:

Open /etc/pm/sleep.d/00-diplayfix in a text editor and paste the following script:

$ gksudo gedit /etc/pm/sleep.d/00-displayfix

Paste this:

case "$1" in
echo 500 > /sys/class/backlight/intel_backlight/brightness
exit $?

Set executable permissions on /etc/pm/sleep.d/00-displayfix:

$ sudo chmod +x /etc/pm/sleep.d/00-displayfix

This should fix your backlight problem on Ubuntu 13.04.

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