You might have tried to adjust volume controls, unplugged your speakers and plugged them back in, and tried to play media on a different device, but nothing seems to work. It doesn’t matter what video or app you pull up you get nothing. In this case, you get no sound at all from the speakers that you were using before the upgrade. This is for those of you who gladly upgraded but then found that your audio had cut out completely. Common MacBook problems and how to fix them.Common MacOS problems and how to fix them.5 reasons your MacBook keeps restarting and how to fix it.Set the audio output setting of the source device to output a compatible audio signal.

Set the TV to the correct video input to receive the signal from the source device.

Make sure that the you're using the appropriate inputs when you use an HDMI connection that supports the ARC feature.

More information is available if the TV speakers don't have sound when using a DVI-to-HDMI connection.

If you're using an HDMI to DVI cable or an HDMI to DVI adapter, you'll need additional audio cables.

Make sure the HDMI cable is securely connected to both the source device (set-top box, Blu-ray Disc™ player, etc.) and the TV.

Select External Inputs → HDMI signal format → select the appropriate HDMI 1 - 4 → Standard format.

Select Watching TV → External Inputs → HDMI signal format → select the appropriate HDMI 1 - 4 → Standard format.

The next steps will vary depending on your TV menu options:.

On the remote control, press the HOME button.

If it is set to Enhanced, change it to Standard.

Check the HDMI® signal format in the TV menu settings.

Check if you hear sound from the TV speakers after completing each step. Follow the steps below to troubleshoot this issue.

Hdmi from mac to tv no sound