Currently Being ModeratedJan 2, 2012 11:50 AM (in response to LSC)
JUST got off the phone with the tech with the same problem...
When the thunderbolt to hdmi connector is connected to the laptop and the tv:
apple - system preferances - sound - output (then select the appropriate whatsisnot)
I got the callback from the expresslane tech when i was at work, and have not had the oppurtunity to hook it up yet, but I was assured that when all the devices are connected, the option to output to the TV will show up, and not just the "internal speakers" which is the only option present when all is not connected.
Will let you know, sports fans....
Currently Being ModeratedJan 2, 2012 12:07 PM (in response to LSC)
- Shut down the computer.
- Unplug the computer's power cord and all peripherals.
- Press and hold the power button for 5 seconds.
- Release the power button.
- Attach the computers power cable.
- Press the power button to turn on the computer.
- Shut down the computer.
- Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
- Turn on the computer.
- Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
- Hold the keys down until the computer restarts and you hear the startup sound for the second time.
- Release the keys.
Currently Being ModeratedAug 20, 2012 11:46 PM (in response to parker612)
I had only bougth my HDMI adapter yesterday and I had no problems with the video but the Audio did not work on the TV. After following your SMC Reset and PRAM Reset it works perfectly. Thank you!
Currently Being ModeratedAug 28, 2012 11:18 AM (in response to parker612)
I had the same problem with my Toshiba flat panel TV and my Mac Pro's mini-HDMI port...no audio output. Following your solution did not solve my case right away. I went further by changing the format to 48000 Hz (default was 96000 Hz) and to 2ch-24 bit integer. Works like a champ now. No problem ever since then. Cheers!
Currently Being ModeratedJan 17, 2013 11:42 AM (in response to MaiklDeivis)
You just need a mini displayport to HDMI "with audio support." At some point, Apple did an update that caused the older mini displayport to HDMI adapters to stop sending audio over HDMI.
Hope this helps!
Currently Being ModeratedMar 6, 2013 9:23 AM (in response to LSC)
FYI, I have a MacBook Pro (2013) Retina 15" with an HDMI port. When I connected an HDMI cable from the MacBook to a TV, the video was fine, but there was no audio. I followed the first suggestion from parker612 above and now the audio works fine. After connecting the cable, go to the following:
- System Preferences
- Sound pane
- Output tab
- Select the HDMI port for sound output (note that this option doesn't show until the cable is plugged in on both ends and the TV is powered on)