Dell ST2210b Monitor is detected but not displaying anything

Discussion in 'iMac' started by Lastb0isct, Aug 2, 2010.

  1. Lastb0isct macrumors newbie

    Jun 16, 2009
    Hi all - I have a situation with a new iMac where the external display, which is connected via mini display port --> DVI adapter, is being detected by the computer but not displaying anything. I have restarted the computer, changed through all of the resolutions and done just about everything else I can think of.

    Does anyone have any experience with this behavior? I am willing to try anything!!
  2. DoFoT9 macrumors P6


    Jun 11, 2007
    are you using it in mirroed mode or extended mode? does the display show antyhing once detected?
  3. Lastb0isct thread starter macrumors newbie

    Jun 16, 2009
    It is in extended mode. The display is not showing anything once it is detected. It is just a black screen...but it is on. It doesn't enter power-saving mode.
  4. aliensporebomb macrumors 68000


    Jun 19, 2005
    Minneapolis, MN, USA, Urth

    Did you buy one of the Apple mini displayport to DVI adapters?

    That's the problem.

    Beware, this adapter only passes along a digital signal. It is missing four pins around the slot that enable it to work with some monitors, projectors and other
    types of devices.

    I wanted to use my Acer 23" with my 27" iMac and found that the adapter won't work that way. I'm guessing I'd need a combination of adapters to function.

    I had to return it and give up on the idea apparently.

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