Thunderbolt to HDMI no sound on late 2009 MacBook

[riggidy]

I have the white MacBook (late 2009), the one with the thunderbolt output.
Anyway, when I plug in the thunderbolt to HDMI adapter and to my TV everything works except the sound.
I went to the sound preferences and my TV doesn't show up there.

(I also have a MacBook Pro and with the same adapter and the same TV, the sound works there and my TV does shows up on the sound preferences.)

Any solution to that?
Thanks

 

[simsaladimbamba]

Only 2011 and 2012 Macs have Thunderbolt, the earlier Macs since late 2008 have Mini DisplayPort, which only supports audio to HDMI since the release of 2010 Macs.

How to: Connect a MacBook, MacBook Air, or MacBook Pro to a TV

Most common video interfaces on external computer displays and TVs

Common video interfaces on Macs and the appropriate adapters to connect to other display devices

Most common audio interfaces on external computer displays, TVs and the Mac​

 

[7itanium]

I PROMISE you do not have a 09 macbook with thunderbolt as it didnt exist

what you have is a mini display port.... and yes they only support video

 

[jg321]

I PROMISE you do not have a 09 macbook with thunderbolt as it didnt exist

what you have is a mini display port.... and yes they only support video

Seconded. I used to have a 2008 Alu MB and it was displayport with video only. Now have an early 2011 and distinctly remember it was the first one with thunderbolt.

 

[Dannyshing27]

If you really need the audio there are adapters you can buy to add the audio from your sound out port to the hdmi cable

 

[riggidy]

If you really need the audio there are adapters you can buy to add the audio from your sound out port to the hdmi cable

Really? Where can I get it??

 

[simsaladimbamba]

Really? Where can I get it??

MonoPrice:

Mini DisplayPort (MDP) / Thunderbolt

Mini DisplayPort is the current digital standard on all current Macs to transfer video to an external display or TV. It has been introduced in 10/2008 with the release of the Unibody MacBook and MacBook Pros and has gradually been adopted on all other Macs.
MDP is capable of transmitting video, and since 2010, audio too. MDP is a miniaturised version of DisplayPort. It is also license free and can support resolutions of up to 2560 x 1600, which Mini DVI and Micro DVI are not able to do.
Since 2011, all Macs come with a Thunderbolt port, which is meant for fast data transfer and also as means to connect to an external display device to mirror or extend the Mac's screen.

To learn more about Thunderbolt (TB) and its compatibility with Mini DisplayPort (MDP): Introducing Thunderbolt​

MDP adapters and cables can be bought online from:

Apple Online Store (or the physical Apple Store)

• MDP to VGA adapter
• MDP to DVI adapter
• MDP to Dual-Link-DVI adapter
• Moshi Mini DP to HDMI Adapter with Audio Support adapter

Monoprice

• Mini DisplayPort + USB to Dual-Link DVI adapter
• Mini DisplayPort to DVI adapter
• Mini DisplayPort to VGA adapter
• Mini DisplayPort to HDMI adapter
• Mini Displayport Male and USB Male/Toslink Audio to HDMI Female Converting adapter
  [*]Mini Displayport Male and USB Male Audio to HDMI Female Converting adapter - *NOTE* Will only support 2 channel stereo. Will not support 5.1 Dolby Surround like the above adapter.

• Mini DisplayPort to Mini DisplayPort cables
• Mini DisplayPort to VGA cables
• Mini DisplayPort to DVI cables
• Mini DisplayPort to HDMI cables
• Mini DisplayPort to DisplayPort cables

Also of interest: "What is "Mini DisplayPort"? Is it an industry-standard? How is it different from or better than Mini-DVI and Micro-DVI?"
​

 

[Dannyshing27]

Hi I covered it in this post


https://forums.macrumors.com/threads/1529776/

simply MDP to DVI to the converter box then attach the sound cables and HDMI out