A typical cause is the wrong audio setting or a failed connection for sound between the Mac and the screen. Other reasons might be outdated Mac software or a bad HDMI cable or adapter. Now that you know the causes lets discuss the solutions.
1. Select Your TV as a Sound Output Device
Switching the audio to your TV makes sure the sound goes through HDMI, not the Mac speakers. The HDMI cable sends video and audio, but your Mac might not switch the sound automatically. Choosing the TV as the output device tells the Mac to send audio through HDMI, which often fixes sound issues on the TV.
2. Adjust System Preferences
By adjusting settings in System Preferences, you tell your Mac to send sound through the right device. This ensures your setup works correctly, confirming all devices communicate properly, especially if they didn’t before.
4. Power Cycle both Devices
Sometimes, turning your Mac and display off and on resets their connection. This clears temporary issues or data errors, especially with HDMI. A fresh start often fixes sound problems.
5. Turn off Monitor
Restarting the monitor can help fix HDMI sound issues. Turning it off and on forces your Mac to refresh the connection, helping it recognize the HDMI audio output correctly. This often resolves temporary sound routing problems.
