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Mac Thread, Macbook Pro to projector issues in Technical; We are getting random display issues when connecting the blue VGA(RGB) projector cable to thunderbolt mini adapter (genuine Apple version). ...
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    Macbook Pro to projector issues

    We are getting random display issues when connecting the blue VGA(RGB) projector cable to thunderbolt mini adapter (genuine Apple version). We often get three stripes down the projected image. I know we can resolve this with a shut down and restart however in a classroom situation this is not ideal.
    Does anyone have experience of this issue and if so did you find a workaround?
    The reseller did suggest booting once whilst holding down shift key which then boots into 'safe mode' followed by a restart and we thought that this would resolve it but we are still getting random, maybe 15% of staff, with either the striped image or just a blue screen.
    New 2012 Macbook Pro 13" and korean brand projectors that do not have hdmi port

    Any help appreciated

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    SYNACK's Avatar
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    Have you tried:
    yanking the connector then plugging it back in
    using the display settings (you can have an icon in the top bar) to disable then re-enable the external output
    testing under boot camped Windows to see if it is a mac driver issue
    testing with an external monitor and the same resolution settings to be sure it is not just the adapter
    different resolutions to the projector
    different refresh rates to the projector

    Sacrificing a goat to Steve Jobs petty spirit :P

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    10.8.2 is what you need.

    Resolves a video issue with some VGA projectors when connected to certain Mac notebooks
    ^ The 'certain Mac notebooks' are the 2012 MacBook Pro's.

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    Rozzer's Avatar
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    Quote Originally Posted by Arthur View Post
    10.8.2 is what you need.



    ^ The 'certain Mac notebooks' are the 2012 MacBook Pro's.
    That was good timing of Apple to release 10.8.2

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    Had similar issues with new MacBooks.

    Reboot the Mac with it all plugged in and the projector on. Seems to work for us as a work around at the moment.

    But if 10.8.2 fixes it, then it's all good.

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    It would be unpatriotic to buy apple in korea these days

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