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If my headphones are plugged in, after going to sleep my Mac doesn't have any sound in headphones. After re-plugging, everything works well. Sometimes, changing the output in sys/Sound works, but not always. I'm on MacBook Pro 2017, Sierra 10.12.6

Is there a solution to this? While working I need to put laptop to sleep frequently, and I don't want to mess with the headphones jack too much on daily basis. If any additional info needed, please let me know.

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1 Answer 1

Reset to default
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You can try:

sudo kextunload /System/Library/Extensions/AppleHDA.kext
sudo kextload /System/Library/Extensions/AppleHDA.kext
sudo pkill coreaudiod

This means:

  1. unload sound kernel module,
  2. reload sound kernel module,
  3. stop sound service, il will restart automatically.
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  • The error didn't occur for a while now. If it will I'll try your solution, thanks.
    – vladli
    Commented Jun 15, 2018 at 11:45
  • This worked perfectly for me using MacOS Catalina 10.15. Thank you!
    – Jason Rueckert
    Commented Sep 18, 2019 at 0:00

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