You could have unintentionally changed your Mac's settings, causing the MacBook Pro no audio problem.There might be some problem with your browser if you are not able to play sound on it.The location where the sound's firmware is stored could be corrupted or some files might be missing.The essential components needed to play sounds on your Mac might not be loaded correctly.There could be a driver or firmware related issue with your Mac.The hardware component (like speakers or headphones) might not be working properly.In this way, it would be easier for you to identify the problem and fix it quickly. Part 5: How to Prevent The MacBook No Sound Issue?īefore I get into the details and start the troubleshooting guide, let's discuss some of the common reasons causing the MacBook no sound issue.Part 4: How to Fix Sound Not Working on MacBook Browsers?.Part 3: What to do if Sound is Not Playing in Videos?.Part 2: Mac Solutions to Fix Sound Not Working on MacBook.Part 1: Why Is Sound Not Working on Mac?.Tested on macOS 10.11, iMac Retina and not working on MacBook Pro Retina. You will not have line out and internal speakers both in your sound panel at all time, even when your headphone is not plugged in. Open up the first download, and drag the second download into it.
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I have a better way to do this (this method no longer works for 10.12.x+). Not working on a retina Macbook (no audio afterward). Note, if you unplug the headphone, it will still show in your audio device panel. Recover the backup file AppleHDA.kext (or your computer won't boot next time you reboot). Ps aux | grep 'coreaudio' | awk '' | xargs sudo kill Sudo kextload /System/Library/Extensions/AppleHDA.kext Reload the kext by running sudo kextunload /System/Library/Extensions/AppleHDA.kext Show package content of this file, go to Contents/Plugins then remove AppleHDAHALPlugIn.bundle. It will not stick after a reboot, so you have to do it every time after the booting.īackup your AppleHDA.kext in /System/Library/Extensions/ I cannot disable this signal, it probably requires some highly skilled kext modifier, but I found a way to reset the internal speaker after it gets disabled. Because Windows or other OS simply doesn't have such function built in, it will just be a weird signal that does nothing. What happened is Apple does have a "hardware" switch built in, which sends a signal to disable/enable the internal speaker.
There is a way to do this but it is difficult and probably not for every user.
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