How to connect MacBook Pro to TV with HDMI If you see “HDMI/ DisplayPort Output”, then your MacBook Pro does support HDMI audio out. Under Hardware, click “Audio (Built In)”.
Click “About This Mac” and then “More Info…”, click System Report.
Note: Only MacBook Pros April 2010 and later support audio, but if you want to check to know for sure, click the Apple logo in the top left corner.