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Thread: Can't change screen brightness

  1. #1
    Join Date
    Jun 2011
    Ubuntu 11.04 Natty Narwhal

    Can't change screen brightness

    Hi guys,

    I would like to change my screen brightness level but the slider under "Brightness and Lock" settings doesn't work.

    I suspect its a (hybrid) graphics issue since I've had quite a bit of trouble getting them to work. I have a hp dv6 with sandy bridge i5-2340M and hybrid Intel 3000/AMD 6700M.

    I have followed various posts and wikis (like this one and this one) trying to get these cards playing together nicely. I can install catalyst etc and get it going but as soon as I change to integrated graphics
    sudo aticonfig --px-igpu
    xserver craps out and I can't get into any desktop shell.

    I'm running precise and currently have catalyst 12.6 installed.

    Can anyone help me? I can post more info if you need it, just let me know.

    Last edited by therog726; August 22nd, 2012 at 11:27 PM. Reason: Added distro details

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