No audio when connecting MBP to TV through HDMI?

Discussion in 'Mac Basics and Help' started by jwGary, Oct 20, 2012.

  1. jwGary macrumors newbie

    Joined:
    Oct 11, 2012
    #1
    I have an early 2009 17 in MBP and recently, I wanted to connect my MBP to my TV so i can watch some HD MKV videos i have. I purchased a Moshi Mini DP to HDMI adapter and I realize that audio isn't supported by my MBP, so I tried to use a set of audio cables I had from my desk stereo speakers (yellow and white audio cables). I have video, but the audio just isn't going through and I tried most of what was suggested online. My TV is a new-ish Samsung (from a year or 2 ago), so I don't see why the audio is not working. I tried to change the settings on both the TV and my MBP, and it says the audio is going through the headphone jack, but the TV isn't doing anything. Any help?
     
  2. CJS7070 macrumors 6502a

    CJS7070

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    #2
    I'm guessing it's with your TV. Most TV's don't accept audio through a source other than what's being displayed - audio is probably linked to some sort of analog input, whereas it's expecting digital input from HDMI.
     
  3. mrichmon macrumors 6502a

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    #3
  4. jwGary thread starter macrumors newbie

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    Oct 11, 2012
    #4
    Since I have the Moshi mini DP adapter, shouldn't I just have to use audio cables? That's what it says in the little booklet that came with the adapter. Also, I have the HDMI cable in the HDMI/DVI slot where I can put in audio cables to send the sound, so I thought it would work..
     
  5. CASLondon macrumors 6502a

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    Apr 18, 2011
    #5
    No, I think he's right about not sending audio out on that port on your model. Just in case, the other issue when this happens is usually going into Sound settings in System Preferences, then selecting the display connected by HDMI rather than the inbuilt speakers.
     
  6. jwGary thread starter macrumors newbie

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    Oct 11, 2012
    #6
    In the sound settings, there is no HDMI option, only the Headphones jack and 2 soundflower options. I know that the sound won't go out through the DP port on my mac, but theoretically, it should work through the speaker/headphone cable i used... but its not
     
  7. mrichmon macrumors 6502a

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    Jun 17, 2003
    #7
    The problem you are encountering is likely to be wrong settings on the TV. TVs generally need to be explicitly configured to pull audio from analog input ports rather than pulling audio from the HDMI signal.

    The way to test is to plug a set of headphones into the speaker/headphone socket while the Moshi adapter is connected between your Mac and your TV. I suspect that you will find that the sound *is* going out the headphone jack.
     
  8. joelba macrumors newbie

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    Mar 3, 2012
    #8
    Where did you connect the analog cables? Try selecting the video/signal number "x" for that input.
     
  9. Mr_Brightside_@ macrumors 68020

    Mr_Brightside_@

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    #9
  10. jwGary thread starter macrumors newbie

    Joined:
    Oct 11, 2012
    #10
    Alright, so I tried what was suggested and nothing worked. I plugged in my headphones while the HDMI was plugged in through the Moshi adapter and i heard it through the headphones. I checked my TV's audio settings and couldnt find anything that would let me get the audio from the audio jacks. Could it be that I am using white and yellow cables? I thought that wouldn't matter since they're colored basically just for organization and distinction.

    Here are some pictures to show the setup/setting I have in order to help figure out whats wrong:
    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
  11. Mr_Brightside_@, Oct 26, 2012
    Last edited: Oct 26, 2012

    Mr_Brightside_@ macrumors 68020

    Mr_Brightside_@

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    #11
    I may've been confusing. To get audio to your tv, get a standard 3.5mm audio cable, like this:
    http://www.monoprice.com/products/p...=10218&cs_id=1021816&p_id=9765&seq=1&format=2
    Each end is identical. Plug one end into your headphone port onto the Mac, the other into the black "audio" port into the picture you uploaded. Then, plug an HDMI cable into the tv, and the other into your MiniDP adaptor. The HDMI setting on your tv should then pick up the audio no problem.

    EDIT
    It's sort of hard to tell from your pictures, but are you using the minidp to hdmi adaptor with an hdmi to dvi cable? If so, you will need a 3.5mm to RCA cable (red and white) and plug them in to DVI AUDIO IN. Your cable will not work.
    http://www.monoprice.com/products/p...d=10218&cs_id=1021804&p_id=665&seq=1&format=2
     
  12. jwGary thread starter macrumors newbie

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    Oct 11, 2012
    #12
    My HDMI cable is a normal HDMI to HDMI, not HDMI to AVI. So I am assuming i need that first cable you linked to?
     
  13. Xcallibur macrumors 6502a

    Xcallibur

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    #13
    No, I think you'll definitely need something like this, 3.5mm to RCA Cable :)
     
  14. Mr_Brightside_@ macrumors 68020

    Mr_Brightside_@

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    #14
    One or the other. OP, probably get both and return one.
     

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