iMac 27" to TV HELP!!

Discussion in 'Mac Basics and Help' started by nickr1, Mar 15, 2011.

  1. nickr1, Mar 15, 2011
    Last edited: Mar 15, 2011

    nickr1 macrumors newbie

    Mar 15, 2011
    I have an iMac 27" with the mini DisplayPort HDMI cable connected to my LG Plasma and it doesn't work.

    Now i have tried with my brothers smaller intel iMac and it works fine. It actually picks up the signal right away when it's plugged into the tv and works. Did Apple change something on the 27"..? Am i doing something wrong?

    Can someone help plz.....
  2. Knoodles macrumors 6502


    Feb 2, 2003
    Gone to the Beach
    It should have recognized it. Try opening System Preferences>Displays and click on the Detect Displays radio button.

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