629      iPhone_iPad_Mac_apple

Device for sound output problem when headphones...

Hello,

When I plug in my headphone to my new macbook pro, internal speakers selection disappears and only the headphones selection appears. I cannot change the devices between macbook pro speakers and headphones.

I try to use 3rd party apps but the problem is going on.

There is a bug on the Sierra OS. How can I fix it?

Thanks.

最后更新：2017-08-25 04:19:44

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