Unplugging and replugging the eighth-inch jack from the back of the computer fixed my problem. An easier way to reset the Core Audio is to just open the Activity Monitor which also lets you know if Core Audio is using too much RAM , select it, then quit or force quit…. You've decided to leave a comment.
Mac sound not working? Here’s how to fix it
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What to do if the sound is not working on your Mac
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Ask Question. When I use the volume buttons, I see this icon: How do I resolve this? Elaine Elaine 19 2. Try running the following command: Maybe if there was another problem that resulted in the same symptom, but to be clear, I think's OP's perceived 'trouble' is with the HDMI connection as I have seen as well, and not really a bug, so I think the other 2 answers are better for this situation. This action may 'reset' the audio system, thus implicitly changing the audio device, but is a more destructive action, and usually unneecessary.
Fair enough for your reply, however, when i have had this issue in the past the command has always worked for me. Also a pretty common solution for others who have had this issue if you google around. Either way its up to OP to decide: It was absolute dumb luck messing with settings but it works!
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Derek Derek 11 1. Created the multi audio device. Sign up or log in Sign up using Google. Sign up using Facebook.