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I don't know when I've started having this, but with my MacBook Air 2015 13", the volume icon only shows "Headphones" as an output device option.

The icon is not greyed out, nor is there any red light coming from the headphone jack. The startup chime works fine as well.

  • Resetting NVRAM - didn't work
  • Resetting SCM - didn't work
  • Re-plugging in the headphones (multiple times) - didn't work
  • Twirling the headphone plug (multiple times) - didn't work
  • Blowing in the headphone jack (multiple times) - didn't work
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The problem fixed itself, by having the MacBook sleep overnight.

-2

You may skipped the softwares for headphones or sound device. It was happened to me and i booted it again. It was fixed.

  • Rebooting doesn't help.. – user109107 Nov 13 '15 at 1:59