macbook pro will not recognize external monitor

Discussion in 'MacBook Pro' started by jstech, Aug 22, 2008.

  1. jstech macrumors newbie

    Aug 22, 2008
    connected macbook pro to external monitor (tried this with 2 different external monitors)
    external monitor stayed black
    went to system preferences-displays- macbook was set for mirroring. mirroring did not occur. unset for mirroring- extend did not occur- reset for mirroring- nothing happened. hit detect displays- nothing else happened. tried with and without dvi adapter- vga analog- and the macbook still doesn't like the external monitors. could it be that the video card is bad? or the connector?
  2. alphaod macrumors Core


    Feb 9, 2008
    It's possible the cable is bad or monitor is. You'd have to use different cables to see.
  3. jstech thread starter macrumors newbie

    Aug 22, 2008
    macbook pro will not recognize monitor

    adpter into vga cable into tv (dvi to vga adapter) didn't wprl
    disconnected adapter and connected pc- monitor worked
    took working computer monitor, hooked it up to dvi adapter- didn't work.
    dvi to dvi cable- hooked to computer monitor. removed adapter and went directly in- did not work. tried resetting machine to mirror several times
    my suspicion-no output from video card.
  4. skiesforme macrumors 6502


    Feb 4, 2008
    Just saw this post of yours. I think you should take it to the store and get it checked. It might be a bad video port.

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