Macbook Pro won't connect to TV or Monitor via VGA cable

Discussion in 'Mac Peripherals' started by jumbb, Jan 10, 2012.

  1. macrumors regular

    Joined:
    May 1, 2010
    #1
    I'm trying to connect a macbook pro to a Samsung television. It's connected like this:
    Mini display port to DVI adapter>
    >DVI adapter to VGA adapter>
    >VGA adapter to VGA cable>
    >VGA cable to TV.
    When connecting, my mac's screen turns blue and when trying to set the TV it doesn't work, the thing is, my mac recognizes the tv in the ''Displays'' settings but it won't fully connect with it.
    I thought it might be a problem with the TV so I connected it to a DELL monitor, and the same thing happened, my mac recognizes the monitor in the ''Displays'' settings, but nothing shows on the screen.
    Am I doing something wrong? or is any of my adapters wrong?
    Thanks for your help!
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    That is a bit too many adapters.
    Why not try an MDP to VGA adapter?
    from
     
  3. thread starter macrumors regular

    Joined:
    May 1, 2010
    #3
    Thanks for your help!

    It might be a problem wit the MDP to DVI adapter, the thing is, I couldn't find MDP to VGI so I had to use the extra adapter.

    What I find odd is how my mac recognizes both monitors but nothing is shown, I'll try to find a direct one tomorrow or change it for another MDP to DVI to see if that helps...
     
  4. macrumors newbie

    Joined:
    Jan 22, 2012
    #4
    I'm having the exact same problem! I'm trying to connect my MBP to a VGA monitor thru:

    minidisplay to digital
    digital to vga
    vga to monitor

    The macbook recognizes the monitor, but the monitor doesn't recognize the macbook.

    I know that PC ->digital & digital->vga & vga->monitor works. And I know that the minidisplay component works too, because when I use another monitor and connect without anything else in between, it works fine. So for some reason it's just the combo that stops the monitor from seeing the macbook... I am at a loss to explain why, though.
     
  5. macrumors 601

    Joined:
    Feb 9, 2011
    #5
    See post 2. Use as few adapters as possible (1 in this case).
     
  6. macrumors newbie

    Joined:
    May 21, 2012
    #6
    So I have the MDP to VGA adapter and it shows my computer screen on my TV. However, when I try to play an iTunes movie it comes up with an error. Any ideas anyone please?
     
  7. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #7
    What exact error playing what exact movie on what exact iTunes version on what exact Mac running what exact Mac OS X version using what exact adapter
    do you get?

    Could it be a HDCP problem?
     
  8. macrumors newbie

    Joined:
    May 21, 2012
    #8
    Im on OSX 10.7.3 trying to rent an itunes movie (we bought a zoo fwiw) on a macbook air. The error said can't play movie on the auxiliary device. It seems I can play regular movies but not HD ones.......
     
  9. macrumors 6502a

    Joined:
    Oct 29, 2008
    #9
    For the OP your issue is that the DP -> DVI connector is not carrying over the VGA signals. it is specifically a DP -> DVI-D adapter. The computer will know it is connected to something but the signal is not getting through because the wires are not there. Most adapters assume that if you want to go DP -> VGA you won't be going DP -> DVI -> VGA.

    As for the poster above me you cannot use DP -> VGA to play videos that require HDCP.
     
  10. macrumors newbie

    Joined:
    Nov 30, 2012
    #10
    Wrong Cable

    What the problem is, is that you have the wrong cable. I had the same problem when trying to connect from iTunes to my external Monitor. What you need is simply a Mini-Display --> HDMI dongle. and a HDMI Cable from your TV to the dongle. Otherwise the VGA cable cannot support 1080p HD from iTunes. :)

    Cheers,

    MacKnowItAll
     

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