Mini Display Port Not Working Until Restart

Discussion in 'MacBook Pro' started by mynewromantica, Sep 2, 2010.

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  1. mynewromantica, Sep 2, 2010

    mynewromantica macrumors regular

    Joined:
    Aug 3, 2009
    #1
    When I plug in my external monitor it does not turn on until I restart my computer with the cord plugged in. I know it is not an issue with the monitor because I can plug in my wife's computer without any issues. Also, when I unplug my monitor before restarting the computer, my MBP screen flashes blue as if it did actually recognize something was there.

    Any ideas?
     
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  2. bluegecko7, Feb 25, 2011

    bluegecko7 macrumors newbie

    Joined:
    Jun 30, 2010
    #2
    i'm also having this problem.
    can anyone suggest a solution?
     
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  3. Avenger, Feb 25, 2011

    Avenger macrumors 6502a

    Joined:
    Sep 20, 2007
    #3
    This sounds like an annoying issue.
     
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  4. Mal, Feb 25, 2011

    Mal macrumors 603

    Mal

    Joined:
    Jan 6, 2002
    Location:
    Orlando
    #4
    Try hitting Command-F1 after you plug in the monitor. That switches between the display modes (extended vs mirrored), but might also force it to detect the monitor. There's also a button in System Preferences -> Displays that says Detect Displays, which might be of use.

    Of course, it could also be faulty in some way. If this is a brand new machine, or even one within warranty, I'd slip into an Apple Store sometime and ask them to take a look.

    jW
     
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