Macbook Pro connected to HDMI, but no sound?
You need a mini DisplayPort (mDP) to HDMI adapter with audio support.

One like BlueRigger adapter should work perfectly for your application.


If you look at the Tech Specs page from Apple specific to your model, you will see that HDMI video with audio is supported.

Just plug in your HDMI cable to that adapter and the other end into your TV and you are good to go.