MB Pro, internal speakers not working.

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Level 1

94 points

MB Pro, internal speakers not working.

Since about a month, the speakers in my MBPro dont work. I have the mbpro connected to displayport monitors, and a dongle with Ethernet and USB, but no sound devices.

In the audio settings, I have the "internal speakers" selected, and volume is at max, and mute is off. Nothing can use the speakers, e.g. skype, chrome etc. If I connect a bluetooth speaker, and select this, I get sound. Internal speakers are simply dead for no apparent reason.

I tried rebooting, this has no effect.

MacBook Pro with Touch Bar

Posted on Sep 8, 2019 6:07 AM

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Answer 1

TheLittles

Level 10

192,491 points

Sep 8, 2019 3:29 PM in response to sfromgi

sfromgi Said:

“In the audio settings, I have the "internal speakers" selected, and volume is at max, and mute is off.”

———-

SMC and NVRAM Resets:

Restart your Mac and then reset your SMC to fix this. Also, reset your NVRAM.

——-

Terminal:

Use These Two Commands in Terminal to Maintain Your Audio:

osascript -e 'set volume output volume 100’

osascript -e 'set volume output muted FALSE'

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Answer 2

fuzzymo

Level 4

2,030 points

Sep 8, 2019 12:07 PM in response to sfromgi

It might be worthwhile to check your "Audio MIDI Setup" in the Applications Folder/ Utilities. Maybe the internal speakers are set to only "Play Alerts and Sound Effects Through This Device" (your internal speaker output).

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Answer 3

sfromgi Author

Level 1

94 points

Sep 8, 2019 2:56 PM in response to sfromgi

FYI, I have found a temporary hack to get it working each time it stops working: find the "coreaudiod" process in the activity monitor, kill it, then audio starts working again for a period of time. I have no audio software or audio devices installed, only what comes with MacOs by default.

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Answer 4

sfromgi Author

Level 1

94 points

Sep 8, 2019 3:15 PM in response to fuzzymo

Thanks for the tip, but this was not the issue in this case.

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MB Pro, internal speakers not working.

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