MacBook Pro/iMac Brightness Problem

Discussion in 'MacBook Pro' started by hobartimus, Jun 27, 2011.

  1. hobartimus macrumors newbie

    Nov 13, 2006
    I'm not sure if I should post this in the MBP or iMac forum, so forgive me if I'm in the wrong place.

    I purchased a 15" MacBook Pro with Thunderbolt about a month ago and have been using my late 2009 iMac as a second display with no problems. Today I took the MBP with me to work away from the office and when I returned and plugged the iMac back in, the MBP display went a bit dark and the iMac went to full brightness.

    I have to increase the MBP brightness to make it look correct and I have no way of adjusting the iMac brightness.

    The brightness on both machines works perfectly fine when they are not connected. Could there be a problem with the video card in my new MacBook Pro?
  2. alust2013 macrumors 601


    Feb 6, 2010
    On the fence
    There's nothing wrong with your video card, it does not affect screen brightness.

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