Strange noise when the screen is on (after have plugged an external Cinema Display)

Discussion in 'MacBook Air' started by philsurmac, Aug 23, 2010.

  1. philsurmac macrumors newbie

    philsurmac

    Joined:
    Dec 7, 2009
    Location:
    Montpellier, France
    #1
    Hi there,
    Since I plugged my Cinema Display (20" alu) to my MacBook Air... I hear a strange sound inside the computer.
    It comes as I guess from the graphic card, or the power, because when I turn off the screen (by putting down the brightness at its maximum), this time there is no sound anymore. When I turn it on, the sound restarts (by being high when the brightness is down, and down when the brightness is at its maximum).
    Is anybody has any idea please ?
    Thanks :)
     
  2. Scottsdale macrumors 601

    Scottsdale

    Joined:
    Sep 19, 2008
    Location:
    U.S.A.
    #2
    Do you have an original MBA? Or are you using MDP to DVI with a v 2,1 MBA?
     
  3. philsurmac thread starter macrumors newbie

    philsurmac

    Joined:
    Dec 7, 2009
    Location:
    Montpellier, France
    #3
    I have the MacBook Air Rev A yes, the first one (mine was produced in july 2008 to be exact ;) )
     

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