27" iMac - Secondary monitor - Anyone done it?

Discussion in 'iMac' started by mrob44, Oct 22, 2009.

  1. mrob44 macrumors member

    Feb 7, 2009
    Has anybody tested the 27" iMac as a secondary monitor yet? I'm curious to know how/what is involved to configure, and how well it works. Post stories if you've done it.
  2. mpuck972 macrumors 6502


    Aug 31, 2007
    Works great. I bought the Belkin cable (Mini Display Port to Mini Display Port) when I picked up my 27" iMac. I plugged on end into my MBP and the other into the iMac, and the iMac instantly became a secondary monitor for the MBP (the iMac was on already). Clicking CMD + F3 on the iMac toggles between the iMac display, and the MBP display.

    I can set the iMac display to be an extension of the MBP desktop, or I can mirror it. If I mirror it, the iMac resolution decreases to match the MBP. If I leave it as an extension, the iMac stays at full resolution. I can also move the menu bar to the iMacs screen if I want.
  3. idyll macrumors 6502

    Jun 5, 2007
    Does the iMac have to be on in order to be used as a monitor?
  4. oftheheavens macrumors 68000

    Jul 9, 2008
    cherry point
  5. fr4c macrumors 65816


    Jul 27, 2007
    Hamster wheel
    Interested in the CMD + F3 feature. Does that mean I can hook up my Mac Pro to the iMac, and switch between the 2 systems using that keyboard shortcut? I just tried it with my MBP and it didn't do anything.
  6. mpuck972 macrumors 6502


    Aug 31, 2007
    Yes you can, but when you switch to your mac pro by hitting CMD+F3 on the iMac keyboard, you will then have to use the keyboard and mouse thats connected to you mac pro.

    In other words the CMD+F3 function doesn't work as a KVM switch allowing for the use of one keyboard and mouse between the systems. It basically acts as an A/V switch.

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