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Thread: [SOLVED] Brightness Settings

  1. #1
    Join Date
    Aug 2006
    Beans
    142
    Distro
    Ubuntu 12.10 Quantal Quetzal

    [SOLVED] Brightness Settings

    How do I adjust the settings for my laptop brightness!? It's fine when it's on AC power, but on battery i can barley see it. Is there a settings file that I can edit? There seems like there has to be, becuase it changes when unplugged. Any help is appreciated.

  2. #2
    Join Date
    Feb 2007
    Beans
    847

    Re: Brightness Settings

    System > Preferences > Power Management

  3. #3
    Join Date
    Aug 2006
    Beans
    142
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Brightness Settings

    I thank you for the reply, but isn't that for Gnome?

  4. #4
    Join Date
    Mar 2008
    Beans
    52

    Re: Brightness Settings

    from the command line you can adjust screen brightness with
    Code:
    su -s [enter]
    yourpassword [enter]
    echo -n 100 > /proc/acpi/video/VGA/LCD/brightness [enter]
    this will set your screen to maximum brightness, you can play around with it after that by entering different numbers in place of the 100

  5. #5
    Join Date
    Aug 2006
    Beans
    142
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: [SOLVED] Brightness Settings

    Upgraded to 8.10 and the function keys for brightnes now work. Everything is fine now. But thanks for the replies

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