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User profile for user: dunxnudder
dunxnudder Author
User level: Level 1
8 points

why do i only have digital out

Since plugging in a mini jack "out" my volume icon is greyed out and I don't have the option to increase volume. In "system preferences > sound" it only shows "digital out" and no sound comes out on the speakers although I hear sound on startup. Also, when I plug in headphones, there is sound for about 10 seconds or less, then the right ear disappears and then the whole lot gets progressively more crackly until only the crackle remains. There is a red light visible in the jack port. I have tried everything I could find on the web without success. I do believe it must be fixable because the jack works for a time and there is sound when I startup. Please help.

MacBook Pro, OS X El Capitan (10.11.4), null

Posted on Apr 23, 2016 7:04 PM

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3 replies
User profile for user: AppleJoe
AppleJoe
User level: Community Manager

Apr 25, 2016 6:14 AM in response to dunxnudder

Greetings dunxnudder,


Thanks for using the Apple Support Communities!


I understand that the sound on your Mac is not working as expected and see a red light inside of the port. We know that situations like this can be frustrating, but we’re here to help.


To begin troubleshooting, read over and work through the suggested steps from the following article.


Troubleshooting issues with no audio from built-in speakers on Macs - Apple Support


Have a great day!

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User profile for user: dominic23
dominic23
User level: Level 10
83,904 points

Apr 25, 2016 6:28 AM in response to dunxnudder

Probably you have tried these steps already.

Try it once more please..


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 o ut 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 “On Mac notebooks with non-removable battery”.


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.

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why do i only have digital out

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