Mac Pro sound defaults to internal speakers after restart or shutdown.

Mac Pro sound defaults to internal speakers after restart or shutdown.

Every time I reboot my Mac Pro the sound output resets itself to internal speakers. This is quite annoying and I had no clue how to fix it. This topic on the Apple forums shows how to fix it.

First delete the audio preference folder:

$ sudo rm -r /Library/Preferences/Audio

Recreate a new one:

$ sudo mkdir /Library/Preferences/Audio

Change the permissions:

$ sudo chown -R _coreaudiod:admin /Library/Preferences/Audio

Go back to the sound preference panel and set the audio to the one you prefer. This will recreate the settings file.

Reboot the system and see if it works.

2 thoughts on “Mac Pro sound defaults to internal speakers after restart or shutdown.

  1. You are my freaking hero!! I cant tell you how many forum posts I’ve looked at about this for months. They all only have the first part (remove the folder) which doesnt resolve the issue, but recreating it did finally!

    Thank you!!

  2. This worked for me on my late 2009 iMac, after restoring from a Time Machine backup the volume level was resetting after each reboot and this fixed my problem. Thanks!

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