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Thread: Asus ROG G53J display backlight not working

  1. #1
    Join Date
    Apr 2006
    Beans
    100

    Asus ROG G53J display backlight not working

    Asus ROG G53J laptop cannot adjust display brightness running Ubuntu 12.04. How do I fix?

    Things I tried that failed:
    http://ubuntuforums.org/showthread.php?t=2033273
    http://askubuntu.com/questions/12846...rol-brightness

    Useful website:
    https://wiki.archlinux.org/index.php/Backlight

    I can now adjust the screen brightness by following these steps:

    1. sudo gedit /etc/X11/xorg.conf
    2. add this line just above the 'EndSection', Option "RegistryDwords" "EnableBrightnessControl=1"
    3. save the file
    4. reboot or restart xorg.
    5. install 'xbacklight' with Ubuntu Spftware Centre or Synaptic Package Manager
    6. map this command to your preferred keys, I used 'Ctrl+-', xbacklight -dec 10
    7. map this command to your preferred keys, I used 'Ctrl++', xbacklight -inc 10

    Enjoy!

    Now I want to know how to map this to the function keys F5 anf F6?
    Last edited by SonWon; January 28th, 2014 at 05:46 PM.

  2. #2
    Join Date
    Apr 2006
    Beans
    100

    Re: Asus ROG G53J display backlight not working

    Found the fix, hope this help some in the future:

    1) Go to Nvidia settings and save config into xorg.conf (the file will be at /etc/X11)
    2) In xorg.conf in the "Device" section for your GPU add (use sudo to edit with your favorite editor)
    Option "RegistryDwords" "EnableBrightnessControl=1"
    3) restart X and brightness works or reboot
    Last edited by SonWon; April 19th, 2014 at 12:14 AM.

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