Mac os x headphone jack red light

RED Light coming from headphone jack.

Sound works fine, headphones or speakers, but whenever the sound is on the light comes on. It usually turns off when the sound does but not always, or immediately.

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This is a common software issue on Mac OS X and earlier versions. switch in the port is stuck -- the red light is the dgital audio signal. Some people also have had luck inserting their headphone jack and directly on the port and blow as hard as you can while the mac is on.

Yes, the red light you're seeing is in fact the optical audio data. The headphone jack output on your Macbook Pro doubles as an optical out. By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies.

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Ubuntu Community Ask! Home Questions Tags Users Unanswered. Red light from headphone jack Macbook Pro running Ubuntu Does this happen on OS X?

No sound on Mac? Check these things first

I think the headphone jack may also be a optical output. I'm using ubuntu These are the steps to solve red light audio jack issue in Macbook. That disables all audio output for me on a MacBook Pro.

My headphone jack glows with a red light

Thank you! I was getting ready to visit an authorized apple dealer to fix the problem.

Reinstalled latest OS update Go figure…. Even when I do this my sound still does not work whether I have earbuds or nots, can anyone help me?

The Headphone Port: The Mac’s Achilles Heel

Called to Apple support: You can do this at the command line as well. See https: Thank God I found this article before I took it to the service center. Eerily, it happened just after I dropped my mac! Thanks a ton!

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Open to ActivityMonitor, list all process and search coreaudiod select and force quit. Problem solved: Hear a bump sound and audio is back!?

Audio & Sound Not Working in Mac OS X? It’s an Easy Fix

But if I let Mac shut down on its own, I have to do it again, but if I shut down manually it will be ok. Question; I have high Sierra.

It wants to upgrade to Mojave. Hope this helps.

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How to check your sound settings

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