MacBook HDMI to TV has no sound

After searching forever, this is what helped me after many days of being frustrated.

I have:

2011 Macbook Pro

3 week old Vizio 42" smart HDTV

15" HDMI to Thunderbolt cable off Amazon.

First the obvious:

System Pref - Display - Mirror, etc

Then in System Pref - Sound - Sound Effects, make sure that "Play sound effects through" is clicked on your tv. This didn't change until I went in and did it. This is what made it work for my tv. Then the obvious Output - HDMI.

Also go into Apps - Utilities - Audio MIDI setup, and make sure the HDMI is selected.

Hey, I tried setting up the audio and it didn't work until I did some fiddlin around. So when you plug in the hdmi to your tv, in System Preferences>Displays, you should find you tv in that category. Now, open Utilities>Audio HDMI Setup. Bottom right hand corner, click the + button and select Create New Multi-Output Device. Now a new catagory called Multi-Output Device should appear. Click it, select HDMI and check off the box and there you go.

After I contacting Apple Support I was able to see "HDMI as an option for TV" by

SMC reset instructions:

1. Shut down the computer.

2. Plug in the MagSafe power adapter (The charger) to a power source, connecting it to the Mac if its not already connected.

3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.

NOTE: Option is labeled as 'Alt' on some models

4. Release all the keys and the power button at the same time. (The device should not power on at this point.)

5. Press the power button to turn on the computer.

- How do I know this was done correctly?

- You must hit the power button on its own after you release the buttons from step 4 to power on.

- Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.

Reference Article: Resetting the System Management Controller (SMC)

http://support.apple.com/kb/HT3964

—

PRAM/NVRAM reset instructions:

1. Shut down your Mac.

2. Locate the following keys on the keyboard:

Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.

3. Turn on the computer.

4. Press and hold the Command-Option-P-R keys before the gray screen appears. (For systems with OS X Yosemite: before the black screen with white apple appears)

5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.

6. Release the keys.

- How do I know this was done correctly?

- You will hear two or more startup chimes during boot.

Reference Article: Resetting PRAM/NVRAM

http://support.apple.com/kb/HT1895

masseHM wrote:

Jason, I followed your advice, but there was still no option for selecting "line in".

Rather than tacking onto a 4 year old thread it may be better to start your own thread which includes details of your problem and your setup.

Writing an effective Apple Support Communities question

This worked for me.

http://www.wikihow.com/Fix-the-Sound-on-a-Mac-Computer

Open the Activity Monitor and stop the "coreaudiod" process. This will restart the sound controller for the Mac:^[2]

• Open Activity Monitor from the Utilities folder.
• Find the "coreaudiod" process in the list. Click the "Process Name" header to sort the list alphabetically.
• Click the the "Quit Process" button. After confirming, coreaudiod will be closed and will restart automatically.

Turn your Mac off. Resetting the parameter RAM (PRAM) can fix a variety of problems related to volume control and sound output. This will reset a few settings but will not delete any of your data.

Well, a regular Apple support advisor and a seniror advisor could not solve my problem, as I suspected. They were nice enough and even offered to have my computer checked at an authorized Apple store. Don't think I'll do it. I will just have to live with it.

hi maxfs, try doing all of the steps again....i was helping a friend with her laptop (vista) and tv, and she had few aha moments.....she had sound but no pic....we figured it out tho

also, do u leopord or lion?

k

and don't give up.....apple support was not all that great when they tried to help me about something and i had to call 3 times before i got someone who understood the problem and helped me resolve it......these things cost enuff, they should perform the way they r supposed to, and support people r more than compensated for their time

I had the same problem and solved it by going to Applications > Utilities > Audio MIDI Setup.

Select the HDMI device in the left menu and change the "Format" option to 41000.00Hz.

This worked for me, hopefully it'll work for you too. 🙂

I have a thunderbolt adapter and hdmi cord and my computer displays on the TV but not the audio. What cord do i use to connect my vizio TV (at least 5 years old) to my new macbook pro retina?

I used just an HDMI cord from my TV to my laptop and i still have no sound. I even tried an audio cord that goes from my computer to the L and R audio on the TV.

Any other suggestions? I have also gone to utilities> Audio MDI setup> and tried to alter the input output format but still no sound. Also tried the TV settings, still no luck.

Is there an audio cord that connects to the TV that would work so I dont have to listen through computer speakers

Help!

I have a 2011 13" MacBook Pro and I can't even get my TV to show up, so none of the options above work.

Does anyone know why the TV wouldn't even show up, I've tried it on two TV's and although I get the mirror display of my MacBook, I just can't get sound...

Please someone help...

I have Toshiba and or John Lewis TV, both of which are not that old...

I am using a gold HDMI lead with an adapter

So frustrated now.

I have tried every option suggested in this thread, but I never have an option to select TV or HDMI. What am I missing? I have a macbook pro purshcased new in Nov. 2012 from Apple. I connected to tv using a Mini display port to HDMI cable. Video works fine, but no audio.

now i keep getting this and i figured it out, so easy, but have since forgot.....there is a setting like midi, but different and can't remember it......i have been looking for the post where i saw this since last nite.....arghhhh

k

i guess it is just the midi settings that i am talking about....but the settings r all set to hdmi output.....frustrating

bister07, just make sure u r hooked into your tv and on the correct channel , otherwise the hdmi option will not show up

k

Thank you so much!

Holding option while clicking on the speaker icon worked for me too, to let me swich audio sources. It's weird the default is not to play sound through the HDMI or give you visible options when you are connected to HDMI.

Thank you again.

Go to System Preferences --> Sound --> Output --> Click On The Tv Output. For me I plugged my hdmi from my Macbook Pro to my Samsung Tv. As soon as I clicked on the tv it did not appear as nothing happened. But no sound will come from your laptop but will transfer sound to the tv. Test the sound by playing music to make sure it works.