sanasus

Q: Problems getting both sound *and* video when connectly Macbook to LG LCD TV

Hi everyone,

First post so if it's in the wrong place please be gentle with us(!)

I've seen similar questions and have spent a good hour trying to figure this out (two of us!)

We've been able to connect the LG to the video using a Mini Display Port and an HDMI-HDMI connector. That's not a problem. We've also been able to get the audio through an audio cable but sadly not both at the same time. The menu on the TV gives us an option to select an output but apparently not both at the same time.

Does anyone have any ideas that will fix this? Is it even possible to do this with an LG TV (the model number is 42LD450)?

I've read somewhere about getting USB audio cables but I've only seen combined ones with the Mini Display Port adapters attached (see http://www.cancomuk.com/Hardware/Cables/Product/68210?_Kanex-iAdapt-20-mini-display-port-to-HDMI-adapter-with-USB-audio-MDPHDMIUSB ) but now I've gone and bought the Mini Display Port adapter, is there anything else I can do? Can the USB audio cables be bought separately or should I just exchange the adapter I have already bought?

Thanks in advance, please be gentle in your replies. Neither of us as tech wizards by a long shot!

13.3" Aluminum Macbook Late-2008, Mac OS X (10.6.6)

Posted on Feb 21, 2011 8:26 AM

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Q: Problems getting both sound *and* video when connectly Macbook to LG LCD TV

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  • by BSteely,

    BSteely BSteely Feb 21, 2011 9:38 PM in response to sanasus
    Level 5 (7,635 points)
    Feb 21, 2011 9:38 PM in response to sanasus
    Are you using the HDMI/DVI IN input on the TV? That's the only HDMI port that can be associated with the Audio IN labeled (RGB/DVI)
  • by frederic1943,

    frederic1943 frederic1943 Feb 22, 2011 1:21 AM in response to sanasus
    Level 6 (9,985 points)
    Feb 22, 2011 1:21 AM in response to sanasus
    MacBooks don't carry both video and sound through the HDMI. (Except for the Mid-2010 version of the MacBook.) Your TV is expecting to get sound through the HDMI connection so there is no way to add sound at the TV. You could try that adapter you listed although I don't know how to select USB for sound output. Otherwise, you'll have to use external speakers plugged into the sound out port on the MacBook or use an SVGA. DVI. or a Composite/S-Video adapter with sound cables if your TV has those inputs.