External Monitor Question

Discussion in 'MacBook' started by nmonti, Aug 27, 2009.

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  1. nmonti, Aug 27, 2009

    nmonti macrumors member

    Joined:
    Oct 30, 2008
    #1
    I recently purchased an acer 23" widescreen monitor and I'm using it as an external monitor for my 13" unibody macbook. Im having an issue with colors on the external monitor, blacks and dark greys displaying but have constantly and fast moving red dots moving around in them, not sure what to do about this, could I be missing a setting within display settings? The monitor is hooked up via DVI btw.
     
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  2. Hellhammer, Aug 27, 2009

    Hellhammer Moderator

    Hellhammer

    Staff Member

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    Dec 10, 2008
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    Finland
    #2
    Try calibrating the monitor. System Preferences -> Displays -> Color -> Calibrate
     
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  3. NewMacbookPlz, Aug 27, 2009

    NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #3
    As for the dots, make sure you have a good properly shielded cable. Cheap POS monitor cables are notorious for ghosting and pixel crawl in my experience (mostly on VGA connections, but I guess a crappy cable could be THAT bad and mess up digital DVI even)
     
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  4. nmonti, Aug 27, 2009

    nmonti thread starter macrumors member

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    Oct 30, 2008
    #4
    turned out to be a loose cable.
     
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