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Sound Is Locked On My Macbook Air

I have had my MacBook Air (2016) for 2 weeks and my sound has been locked


It Appears It Cannot Find The Output Drivers


Things I Have Tried

1.Plugging and Unplugging Headphones

2.Using Toothpick to press Switch in Headphone Jack

3.Doing The "Command-Option-P-R Thing"

4.Restarting (Duh)

5.Doing "sudo Killall coreaudiod" in terminal


IS THERE ANYTHING ELSE THAT I CAN TRY WITHOUT GETTING IT CHECKED OUT

MacBook Air

Posted on Jan 28, 2017 6:39 PM

Reply
1 reply

Jan 30, 2017 6:38 AM in response to HazArg540

Hi HazArg540,

Thank you for visiting Apple Support Communities.

You mentioned that your sound has been locked. You tried a lot of good troubleshooting steps so far.

Next, see the advice in Troubleshooting issues with no audio from built-in speakers on Macs :

Confirm the correct version of Mac OS X is installed on your Apple computer

If an incorrect version of Mac OS X is installed onto an Apple computer, a number of issues—including issues with audio—could occur. The article Don't install a version of Mac OS X earlier than that which came with your Mac contains more information on some of these issues you may encounter. You can also refer to Mac OS X versions (builds) included with Intel-based Macs or Mac OS: Versions, builds included with PowerPC Macs (since 1998) to confirm the version you have is correct.

If you determine the version of Mac OS X installed on your Apple computer is incorrect, you may need to perform an archive and install or erase and install. Be sure to back up important information before proceeding with either option.

Check your Sound System Preferences pane

If you are still having issues after you have confirmed the proper version of Mac OS X is installed, make sure the computer is set to play sound from the right source.

  1. Remove any external audio devices and cables from the USB, FireWire, or 3.5 mm audio ports.
  2. Open System Preferences from the Apple () menu, the Dock, or from the Applications folder on your hard drive.
  3. Open the Sound pane and the Output tab, then select Internal Speakers as in this image:User uploaded file
    1. If Internal Speakers is not an option proceed to step 4. For Mac Pro computers, proceed to step 5.
    2. If Internal Speakers is present but not selected, select it and test again.
    3. If the Output volume slider is low or the Mute box is selected, raise the volume slider or deselect the Mute box and test again.
    4. If the issue continues through these steps and Internal Speakers remains the selected option proceed to step 5.
  4. If the Internal Speakers option does not appear in the Output tab and your computer is not a Mac Pro, check that Digital Out is present as in the image below:User uploaded file
    1. Confirm again that all external audio devices and cables have been removed.
    2. Check to see if a red light is lit in the line-out port. If so, your Apple computer may need service.
    3. If you do not see a red light, proceed to step 5.
  5. If the issues persist, contact Apple support for further troubleshooting assistance.

All the best.

Sound Is Locked On My Macbook Air

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