What to do if the MacBook Air does not see the built-in speakers and constantly thinks that headphones are connected?

Question

macbook

Hello!
I ran into the same problem on a 2014 MacBook Air.
The laptop stopped switching to built-in speakers and sends sound to the headphone port all the time. When you connect headphones with sound, everything is fine, sings. But when I disconnect them from the port to the speakers, the laptop still does not switch. Everything works fine with external sound devices too (Yamaha wireless headphones via Bluetooth, Line6 KB37 station via USB).

The input data is as follows:
- When you turn on the laptop, the fanfare sound from the speakers is emitted, loud and clear.
- The diagnostic utility does not find problems in the hardware.
- In the system settings in the output tab it always says "headphones", the item "built-in speakers" does not appear either when the headphone jack is connected or when the headphone jack is disconnected.
- In the system settings in the input tab, it always says "built-in microphone", the microphone works fine, it does not make noise, it does not phonate, it reacts to sound.
- When booting under Windows from the Boot Camp partition - the built-in speakers work great, sing, croak and make all the wonderful sounds, as they should :)
After analyzing this story and searching for a solution on the Internet, I did the following:
- Reset SMC and PVNR
- Cleaned jack a cotton swab with alcohol
- Moved the contacts with a toothpick
- I "plugged and plugged" the headphone jack many times (when such a joke on iPhone 4, it always helped)
- I blew the jack connector for a long time and hard
- Corrected access rights
- Turned on "first aid" to the disk (in disk utility)
- Reinstalled MacOS 2 times clean , from a bootable flash drive, with full formatting of the drive
All of the above did not help me, the laptop constantly writes "headphone port" and does not turn on the built-in speakers.
As a reminder, I installed Windows on the Boot Camp partition - the sound works fine on the speakers.
Actually, a question. Who is to blame and what to do?!

Answer 1

I am the owner of a Macbook Air 13 Mid 2011, I have a mirror problem - it does not see the headphones when connected and outputs sound to the speakers, it only helps to send the laptop to sleep with the headphones connected and wake it up again. Reset SMC, PVNR and everything that is possible, did not help. The problem appeared on its own, nothing preceded it. There are no problems on windows either.

Answer 2

Your system, for some reason, does not see the speakers.
In my system, for example, like this:

Answer 3

I had a similar problem after deleting the boom device
by editing com.apple.audio.SystemSettings.plist
removed boom related fields - rebooted coreaudiod - all OK