Fix the Backlight Problem After Suspend in Ubuntu 13.04 Raring Ringtail

Hello Linux Geeksters.

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:

#!/bin/sh
case "$1" in
thaw|resume)
echo 500 > /sys/class/backlight/intel_backlight/brightness
;;
*)
;;
esac
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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5 comments on “Fix the Backlight Problem After Suspend in Ubuntu 13.04 Raring Ringtail
  1. Ólavur Mortensen says:

    This partly solves it for me. Before, the screen was black, but the mouse was there. After making this change, the background appears and the mouse appear, and nothing else.

    I might add, that I saw this solution a little differently on the ubuntuforums (http://ubuntuforums.org/showthread.php?t=2126215), shown below. This just made the computer jump out of suspend instantly, but otherwise everything worked as it should.

    “””

    #!/bin/sh case “$1” in thaw|resume) echo 500 > /sys/class/backlight/intel_backlight/brightness ;; *) ;; esac exit $?

    “””

  2. Gybrush says:

    Solved it for me. Thanks a lot!

  3. nameless says:

    Solved for me too

    GREAT THANKS

  4. federico says:

    worked in Ubuntu 14.04 LTS! Thank you!

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