MacBook Pro (April 2009) Mini Displayport to HDMI convertor (no audio)

This isn't going to help you, but I wanted you to know I'm basically the same boat, except mine is a new 13" MacBook Pro and the adaptor is made by PTC.

I have last years MacBook Pro, and was told that the mini display port only supports output to video, no audio whatsoever, not even HDMI. What a waste. Instead you have to use a cable from the headphone jack to make the sound work.

there appear to be a number of adaptors / cables that won't do the job properly with sound.

You can find some discussion of the matter HERE but note that some cables from Monoprice (mentioned in the article) also apparently don't work.

THis one from Griffin apparently does work.

Apple also have a brief knowledgebase item about the matter at http://support.apple.com/kb/TS3065

Cheers

Rod

Here is one that supports sound.

http://www.macmall.com/p/KANEX-Adapters-and-Gender-Changers/product~dpno~7943034 ~pdp.ficjhig

Hi chazzarelli,

Last year's model, as you say , did not support sound through the MDP, but, despite the heading, it is pretty clear that Aren55555 really has an April 2010 model, rather than 2009.

The new model does support sound through the MDP to HDMI, as long as the adaptor/cable used is sufficiently "up to specification".

Cheers

Rod

I too have a new macbook pro i7 and purchased an adapter that is compliant with VESA 1.1a per this article...Nothing wrong with the HDMI on the TV as the DVD player works fine. Nothing in the sound properties that I can set to send audio out the hdmi connector...This is NOT good.

http://support.apple.com/kb/ts3065

Just received an adapter I purchased off eBay for less then $10. Works great, with audio. Purchased from eBay store "Smartlaptopparts". Make sure it says in the ad that it supports audio pass through before you buy. Also, when setting up for HDTV display, you have to go to System Preferences/Sound and select your listed TV on the 'Output' tab. That's what did it for me.

yeah, TV is not listed in the sound preferences.

Just bought a Moshi mini displayport to hdmi adaptor for my new 13" mbp. I asked the sales person whether it can pass through sound before buying. He said as long as your cables and mbp are HDMI 1.30 then it will be OK. However when I link it up with my Philips 42" TV through the Moshi adaptor and Belkin cable all I get was video only and sound was not passed through. Furthermore, there are no settings to choose for anything besides the built-in speakers. So I go back to the store but cannot get any proper replacement and the store owner advises me to look for it from Apple Store.

I then checked with Apple Stores (Hong Kong) and cannot find any mini displayport to hdmi adaptors specifying both video & audio pass-through. The Griffin Video Display converter is not available from the local Apple Store. Has someone successfully get video and sound to pass through from the new mbp. Can you suggest names for the adaptors so I can look for them from other computer stores here.

It is rather disappointing that there is no appropriate mini displayport to hdmi adaptor available from the Apple Store for the new mbp. There is just no reliable solution out there yet.

Any suggestion for a proven workable adaptor that can pass through audio with video.

Belkin's website says its "1.8m HDMI to Mini HDMI Cable enables delivery of both high-definition video and multi-channel, digital audio from your portable digital devices to your home cinema. It offers an ideal way to connect digital camcorders and digital cameras with mini HDMI (HDMI C) ports to HDTVs or AV receiver with full-size HDMI (HDMI A) ports."
Its price is reasonable too (around USD20). Does anyone try it successfully with audio & video pass through the mbp to hdtv?

I really got messed up. The Belkin's Mini HDMI to HDMI and not Mini Displayport to HDMI.

Sorry for my stupid mistake.