Mini DisplayPort to HDMI transmits no audio on 2011 iMac with Lion 10.7.2

Hello everyone. I'm new here.
I have a 2011 iMac which was shipped with Lion and I updated to 10.7.2. I am trying to connect my iMac to my televison to play my movies, etc by using the HDMI connection. No VGA connection on this TV, which is what I used to use before upgrading computer and TV. I ordered a MDP to HDMI adapter from ebay which says it supports audio. The seller is reputable and I do not see any issues from their other customers.
I have the MDP to HDMI adapter connected to an HDMI cable connected directly to my 46" Panasonic LCD. The video transfers perfectly, but audio continues to be played from computer's internal speakers. I've read through as many posts as I can find. I see many which tell you to select HDMI in System Preferences>Audio. There is no option for HDMI here. I only see "Internal Speakers" as the output option.
I called AppleCare and even spoke with a Senior Advisor. They say I need to buy one of the two adapters they recommend in their support article. (I get the impression that they just wanted me off the phone.) Those are overpriced and I think this adapter should work, as I see other customers of this same product are satisfied.
I've tried resetting PRAM and also SMC. I've taken a look at the audio settings on my televison, all to no avail. I don't understand why HDMI would not be shown in Audio under System Preferences. Any ideas? Thanks for your help!

Same problem.
All my equipment is directly from Apple, except two items bought December 2011, namely a 24" Sony Internet TV and a high end HDMI cable bought from Sony.
My Macbook Pro 15" with its 10.7.2 Lion and Intel Core 2 Duo let's me plug in a Moshi DP HDMI adapter via the HDMI cable to the Sony Internet TV.
By selecting the source on the Sony TV, I can get the display working. My Macbook refused to see the Sony TV until I switched to Mirror Display, but now I can switch between the two display modes fine with no problems.
But the audio does not work.
Really rather annoying, considering that there have been problems with this feature in several OS X generations now - after apparently working fine once upon a time.
Dear Apples, kindly could you tell me when you will re-introduce audio support through DP HDMI connectors?
Peter
(London, England)

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2009 24-inch iMac 3.06GHz (EMC no. 2267). I don't get any audio when connecting my Sony HD TV to my iMac via mini DisplayPort. Is there a fix or hardware upgrade? I'm using a Kanex Mini DisplayPort to HDMI cable w/ audio support.

You can connect the audio from your iMac to your TV using a mini jack (like headphones plug) to rca (regular red and white audio connectors used on every TV,DVD, etc) cable.
On your TV, you need to be able to set the audio for the HDMI input you will use to "analog" and connect the rca end of the cable to the analog inputs on your TV.

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http://en.wikipedia.org/wiki/Mini_DisplayPort
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http://support.apple.com/kb/HT4241

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Hi all, I'm trying to connect my macbook pro to Sony Bravia tv using Kanex Mini DisplayPort to HDMI Cable with Audio Support , when connected to the HDMI on tv I get a picture of the mac screen saver ( the starburst ) no video/audio,thanks, Derek

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Any Mini DisplayPort to HDMI adapter with audio for macbook pro mid 2009

connecting MacBook Pro (15-inch, Mid 2009) to Hisense TV with audio?!?!!?
hello everyone.
if anyone is familar with successfully getting the older macbook pros that dont support audio out to stream and preform digital audio on a TV or has any helpful information that will get me familiar with trying to successfully stream audio and visual. and can PLEASE HELP ME in any way to understand what they know and teach me how to solve my problem id really appreciate it.
i want to connect my MacBook Pro (15-inch, Mid 2009) to my Hisense LED LCD TV, ModelNumber:40H3E and getting digital audio sound from my TV as well as video, but have no clue on how or where to even start to successfully pairing the two and getting sound.
I own a MacBook Pro (15-inch, Mid 2009) this MacBook model doesnt support an HDMI port. My MacBooks model has the Mini Displayport which supports video out but does not support audio out. Can someone help me by telling me exactly which Mini DisplayPort to HDMI adapter with audio will support my model MacBook Pro (15-inch, Mid 2009) and exactly what HDMI wire do i need to buy that will successfully preform digital audio and sadisfying quality visual through TV?
i have NO expierence with the proccess have NO knowledge about any of this or these Mini DisplayPort to HDMI adapters with audio. i have no idea what kind of adapter and HDMI cord to buy that will give me sound from my tv for my type of macbook. '
im not familar AT ALL with any of this so i hope me giving you my MacBook Pros make and model and my TV's model number will be enough information for someone to help me.
just please give me anything you can on this topic
thank you so much,

With a 2009 MacBook Pro, you need to use two connections to your TV: one for video and another one for audio. The miniDisplayPort on the 2009 models does not support audio, so you need a separate audio cable:
miniDisplayPort adapter for video - I use the Apple miniDisplayport-DVI adapter + a DVI-HDMI cable like this one
audio cable for audio - use a 3.5mm male stereo-to-2xRCA male cable like this one
Connect the miniDisplayport adapter + DVI/HDMI cable to your MacBook Pro's miniDisplayPort output and the HDMI input on your TV
Connect the audio cable to your MacBook Pro's audio out and your TV's audio in
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I might be wrong but the MBP 2008 does not have audio supplied capability over MDP to HDMI.
http://support.apple.com/kb/HT4241

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Ciao.

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Only the adapter with Toslink can supports the 5.1 Channel audio. You can get the product through the Link: http://www.cablematters.com/pc-56-26-mini-displayport-male-and-toslink-audiousb- male-to-hdmi-female-adapter.aspx
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T430 1600x900 i5 Core: Mini DisplayPort To HDMI 1920x1080 TV Resolution And Sizing-Overscan Problems

Hello, and thanks in advance for any help. Also, my apologies if these issues have been previously resolved; I've spent 2 days searching for answers and none of my effort has resulted in a solution, either here or elsewhere.
I very recently for the first time connected my ThinkPad T430 2344-5GU (i5 core, native screen resolution 1600x900, Intel HD 4000 v9.17.10.2843, NVIDIA Optimus NVS 5400M v9.18.13.1100) to a Panasonic HD TV (native screen resolution 1920x1080) using a Mini DisplayPort to HDMI connector, with the hope of playing 1080p movies on my laptop while watching them on the TV. This seemingly worked fine at first--both audio and video were present--but I quickly noticed that the image on the TV was, very slightly, larger than the image on the laptop screen (cutting off roughly 5% of the image on each of the 4 sides) and that the resolution wasn't 1920x1080. So I hunted for a solution.
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Try grabbing the latest NVIDIA driver off of the NVIDIA website. It might help.
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Mini displayPort to HDMi Adapter for Macbook

ALCON,
I need your assistance i recently purchased a mini displayPort to HDMI adapter for my Macbook to view my movies from ITUNES on my HDTV. The problem im having is there is no picture or sound on the HDTV once i hooked it up to my tv. My question is am I doing something wrong. My Mini DisplayPort To HDMI adapter supports Video and Audio Output to HDTV. Please help... Thanks
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It would help to know which one of the 9 different models of MacBook you have. To see which model you have go to the Apple in the upper left corner and select About This Mac, then click on More Info. When System Profiler comes up check the Model Identifier and post it back here.

Mini DisplayPort to HDMI transmits no audio on 2011 iMac with Lion 10.7.2

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