Missing Audio Drivers

Question

Missing Audio Drivers

I recently followed the suggested update on my MacBook to the latest Sierra 10.12.6. After the update was completed, I no longer had access to any inbuilt sound devices. No headphones, no speakers. The System Preferences sound section showed no option for output other than Living Room Apple TV. There are no input devices showing at all. When I launch Garage Band, which I previously used frequently, it generates an error message stating that "Selected Driver not found" (-10202)

Any ideas?

MacBook Pro

Posted on Dec 22, 2018 3:21 AM

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Answer 1

Top-ranking reply

Eric Root

Level 10

684,573 points

Dec 23, 2018 7:14 PM in response to PhillipMorrisSydney

More tests to try to isolate the problem.

Try setting up another admin user account to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.

Isolating an issue by using another user account

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Answer 2

Eric Root

Level 10

684,573 points

Dec 24, 2018 8:23 AM in response to PhillipMorrisSydney

Do a backup, preferable 2 separate ones on 2 drives. Boot to the Recovery Volume (command - R on a restart). Run Disk Utility and select First Aid. Then re-install the OS.

Reinstall from macOS Recovery

OS X Recovery

OS X Recovery (2)

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Answer 3

Dec 23, 2018 6:57 PM in response to Eric Root

Hi Eric,

Thanks for the suggestion.

For some reason, eventhough Sierra 10.12.6 is already installed on the MacBook, when I tried to run the Combo Inataller, it installation failed and generated the following message

"macOS Sierra Update can't be installed on this disk. This volume does not meet the requirements for this update."

I'd appreciate any further advice you might have.

Regards.

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