No signal Displayport-->TV?

Discussion in 'MacBook Air' started by stegger, Apr 15, 2011.

  1. stegger macrumors newbie

    Joined:
    Jan 25, 2011
    #1
    Hi,
    just bought a Macbook Air recently (2010 edition) and at the same time I bought a mini displayport-HDMI adapter and have been using that to display things on both an external screen and movies on my TV- similar to this: http://cgi.ebay.com/Mini-DisplayPor...292?pt=LH_DefaultDomain_0&hash=item27b9d5e8e4

    Now the other day, I took out the converter from the mini displayport on my mac while I could see my mac homescreen picture on my TV, and after putting it back it seems it cannot connect any more to either TV or external monitors.
    When I insert the above converter the screen on my MBA turns blue for a second, just at it used to once it detected an external screen, but then nothing happens??? I am very new to the mac world, but can I accidently have turned some setting off or any clues on how to determine what is wrong here?
    Unfortunately I dont knwo anyone with a mac I could just try my cable with.

    Thanks in advance!
     
  2. Satori macrumors 6502a

    Satori

    Joined:
    Jun 22, 2006
    Location:
    London
    #2
    Try this...

    Open up displays (from the system prefs pane) and press the button that says detect displays.
     
  3. liudekhua macrumors newbie

    Joined:
    Apr 15, 2011
    #3
    i am having the same problem too!

    i recently bought my mba 13" and also with a minidp to hdmi port from ebay. when i plug in the minidp to my mba, the screen flashes blue but nothing comes up on the tv. when i plug out the minidp the screen flashes blue again. i tried with various tvs and tried the detect screen method. i even tried changing the resolution of my mba. all don't seem to work for me.

    any help would be appreciated!
     
  4. Satori macrumors 6502a

    Satori

    Joined:
    Jun 22, 2006
    Location:
    London
    #4
    According to this, only two adapters currently work:

    http://support.apple.com/kb/HT4241
     

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