Q: no sound on macbook air. There is no input devices in system preferences (sound) to select. I can hear output throud bluetooth devices. Can anyone tell me is there anything I can do to get the sound back on computer speaker?
I have no sound on my macbook air. There is no input devices in system preferences (sound) to select. I can hear output sound through bluetooth devices. Can anyone tell me if there anything I can do to get the sound back on computer speaker?
MacBook Air, OS X El Capitan (10.11.6)
Posted on Sep 10, 2016 6:28 PM
Go step by step and test.
1. System Preference > Sound > Output > Internal Speakers
Highlight Internal Speakers.
Make sure that Mute is not enabled.
2. Plug in and remove the headphone.
If you see red light in the headphone port, plug the headphone
in and out of the port 5 or 6 times to flip the microswitch inside.
Sound output may be stuck in digital mode.
3. Reset PRAM. http://support.apple.com/kb/PH18761
4. Reset SMC.
Choose the method for “If the battery is removable”.
https://support.apple.com/en-us/HT201295
5. Applications > Utilities > Audio MIDI Setup
Audio Devices window
Side Bar
Click the Built-in Output.
Make sure that box is not checked under “Mute”.
Make sure that Format is set at 44100.0 Hz.
Right click on the Built-in Output for available options.
Posted on Sep 11, 2016 4:06 AM