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Thread: ATI Underscan

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  1. #1
    Join Date
    Jan 2010
    Beans
    62

    ATI Underscan

    Over the last couple days I have been struggling with underscan on my HTPC (by default a couple inches of my screen would be cut off). Adjusting underscan in the Catalyst Control Center solved the problem, but it wouldn't save changes after a reboot. I've tried multiple solutions (running sudo amdcccle, rebuilding xorg.conf, etc) all of which didn't save after a reboot.

    Here are my specs:
    - Motherboard: ASUS AMD Zacate E-350 E35M1-M PRO
    - Samsung 46" TV
    - HDMI connection from HTPC to TV
    - AMD ATI Catalyst 12.6 driver (built via instructions here: http://askubuntu.com/questions/12429...-video-drivers)

    I resolved this with the following command:
    sudo aticonfig --set-pcs-val=MCIL,DigitalHDTVDefaultUnderscan,4

    Simple. Hopefully this will help someone else in the future.

  2. #2
    Join Date
    Jan 2010
    Beans
    62

    Re: ATI Underscan

    As an update, the above is one way to fix the underscan problem.

    Alternatively, my Samsung TV allows you to change the picture type to "Just Fit" and this resolves the problem.

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