Mac Volume Control Not Working with HDMI Monitor? Complete Fix Guide

Why Mac Volume Control Gets Disabled with HDMI Connected your Mac to an HDMI monitor and suddenly your volume controls are greyed out? You're not alone. This happens because macOS treats HDMI as a digital audio connection, and many external monitors don't support volume control through the operating system. When you connect via HDMI, your Mac sends both video and audio signals through the same cable. If your monitor or TV becomes the audio output device, macOS often disables software volume control, assuming the external device will handle audio levels. Quick Solutions That Actually Work 1. Check Your Audio Output Settings First, verify where your audio is actually going: Hold Option and click the volume icon in your menu bar Look at the Output Device list If you see your HDMI monitor/TV listed, that's why volume control is disabled Select Internal Speakers or MacBook Speakers to regain control This works if you want audio through your Mac's built-in speakers rather than the monitor. 2