External display suddenly wont connect

Discussion in 'MacBook Pro' started by speedyfv, Oct 13, 2011.

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  1. speedyfv, Oct 13, 2011

    speedyfv macrumors member

    Joined:
    Oct 12, 2010
    #1
    I was using my macbook which is connected by a minidisplay port to hdmi cable to a 24" samsung lcd. I closed my macbook then accidentally moved my bluetooth mouse which turned my macbook back on in clamshell mode, after that my macbook wont recognize i have the external display connected, everytime i plug it in my macbook screen just starts flashing.

    Any help?
     
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  2. speedyfv, Oct 14, 2011

    speedyfv thread starter macrumors member

    Joined:
    Oct 12, 2010
    #2
    Bump, still havent found a solution
     
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  3. dusk007, Oct 14, 2011

    dusk007 macrumors 68040

    dusk007

    Joined:
    Dec 5, 2009
    #3
    Have you tried other displays?
    If you click spaces, does the mini View show the extended Desktop?
    Do you have by any chance switchable graphics and are you forcing the IGP?
     
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