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no output sound devices found on my iMac. Whats going on?

My volumn is no longer working. I can't hear anything on any pages. went into system preferences then sound and there is no output preference to select.

Any advice would be great

MacBook Pro 13″, macOS 10.12

Posted on Apr 25, 2021 11:33 AM

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Question marked as Top-ranking reply

Posted on Apr 25, 2021 11:38 AM

Boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and see if the problem persists. Reboot normally and check again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


1 reply
Question marked as Top-ranking reply

Apr 25, 2021 11:38 AM in response to traceytt98

Boot into Safe Mode according to Start up your Mac in safe mode - Apple Support and see if the problem persists. Reboot normally and check again.


NOTE: Safe Mode boot can take up to 10 minutes as it's doing the following; 

• Verifies your startup disk and attempts to repair directory issues, if needed

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• Prevents Startup Items and Login Items from opening automatically

• Disables user-installed fonts 

• Deletes font caches, kernel cache, and other system cache files


no output sound devices found on my iMac. Whats going on?

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