DisplayPort over Thunderbolt

Discussion in 'iMac' started by marzomac, Jul 27, 2012.

  1. marzomac macrumors newbie

    Jul 27, 2011
    Is it possible to use a Thunderbolt cable to carry a Display Port signal to an iMac that doesn't have thunderbolt?

    eg. connect rMBP to 2010 iMac 27" using thunderbolt cable.

    Thanks in advance.
  2. Aldaris macrumors 68000


    Sep 7, 2004
    Salt Lake
    I imagine it would work since it is using the same tech anyway. I use my thunderbolt to mini display port adapter to hook up to an old Apple Cinema Display (20" Acrylic). It's the same signal either way (without data but video is being sent).
  3. iSayuSay macrumors 68030


    Feb 6, 2011
    Each Thunderbolt signal carries DisplayPort + PCIexpress. If you have Thunderbolt display, it will be able to separate video signal from DP and data fron PCIex.

    Now if you have monitor only with DisplayPort input, such as ACD or 2009/10 27" iMac then it will run just fine. But data signal will be ignored. Press cmd F2 on your iMac under osx to switch to target display mode.

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