Why can't I get any audio when I use my TV as a monitor?

Discussion in 'MacBook Pro' started by TezaStone, Jan 9, 2013.

  1. TezaStone macrumors newbie

    Joined:
    Nov 30, 2012
    #1
    :confused:
    I have an old model (2010) Macbook Pro...the kind that only transfers video but not audio through the hdmi cable.

    I have this tv:

    http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5247576

    With these terminals:

    Inputs
    Composite
    Component In
    HDMI
    RF Input
    Ethernet (LAN)
    DVI Audio In
    Outputs
    Optical Digital Audio
    Audio Output
    HDMI Ports 2

    So I can get video with a mini-dvi to hdmi adaptor and hdmi cable, but I can't get sound.

    I didn't know what "in" and "out" meant when it came to terminals ( complete newbie at this!) so I tried an audio cable, an optical digital audio cable and a DVI Audio cable. The audio and optical digital audio didn't work becuse they're output terminals, but neither did the DVI Audio in!

    Am I doing something wrong? Is there no way to get sound from my Macbook Pro to this tv???

    Any suggestions?

    Thank you!
     
  2. takeshi74, Jan 9, 2013
    Last edited: Jan 9, 2013

    takeshi74 macrumors 601

    Joined:
    Feb 9, 2011
    #2
    You have to use the audio connector for the input you're using. HDMI inputs generally do not have separate audio connections because HDMI carries audio.

    I found the manual for your TV but it doesn't have a clear diagram of all the connections on the back. Can you provide a photo? The manual seems to indicate that the only audio input is for the component input despite what you've stated.

    I've never heard of a DVI audio connector or cable. Can you provide photos?

    What I suspect is that the DVI audio input is for use with HDMI input 1 since the manual refers to "HDMI IN 1 (DVI), 2". Note that DVI is in parenthesis after HDMI 1 but not after HDMI 2.

    It also states "To connect the TV to a digital device that does not support HDMI output, use an HDMI to DVI cable and separate audio cables" but it never says where to connect the audio cables. A connector named "DVI Audio In" would make sense if that was the case.

    This commonly posted guide
    http://forums.macrumors.com/showthread.php?t=792106

    seems to indicate that you can have audio over HDMI with your MBP using a specific adapter from Monoprice.
    http://www.monoprice.com/products/p...=10428&cs_id=1042802&p_id=5969&seq=1&format=2
     
  3. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #3

    Btw, it is not Mini DVI what you have, it is Mini DisplayPort.

     
  4. takeshi74 macrumors 601

    Joined:
    Feb 9, 2011
    #4
    Yep. There you go:
    http://www.mac-forums.com/forums/ap...dio-when-i-use-my-tv-monitor.html#post1485982

     

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