I do not see "Internal Speakers" at all any more

by sersipi   Last Updated June 15, 2017 10:12 AM

When I turned on my iMac (MacOS Sierra) this morning, the video I tried to play did not play any sound. My volume icon is greyed out. I looked at the Outputs from the Sound Preferences. I do not see "Internal Speakers" at all any more.

There is no change when I plug in my headset.

The first sound comes out when the system starts.

I tried to treat lightly touching the toothpick through the headphone output but this did not happen.



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Updated July 15, 2018 23:12 PM