MacBook Air - No internal speaker sound after boot (icon not greyed out + no red light) 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
The problem fixed itself, by having the MacBook sleep overnight.