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Built-In Speakers Sound Output Missing.

I currently have no sound from my macbook pro's built in speakers. When I try pressing the volume buttons on the keyboard, a small "blocked" sign comes up (like on no smoking signs, the circle with a cross through it). When in sound preferences, under Output, there is only "Digital Out", where there should be Built-In Speakers. When i put in headphones, sound comes through as usual, it is merely the speakers themselves which will not work.

please please help!

macbook pro 17", Mac OS X (10.6.5)

Posted on Mar 1, 2011 12:02 AM

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60 replies

Aug 22, 2017 10:19 PM in response to c_brentnall

After revisiting this for about the 5th time and trying the many different methods in this thread, the only way I've been able to restore my Internal Speakers was to plug in a 3.5mm headphone jack and leave it plugged in.


This causes the OS to register "Headphones" as the connected output device in Sound (System Preferences). From here, you can then set the "Use audio port for" setting to "Sound Input." This causes the audio port to switch to input mode which in turn brings back the Internal Speakers as the default Output device.


Essentially what you're left with is a dual-purpose stereo jack for your audio port: fix for your Internal Speakers and removable dust cover.

Nov 11, 2017 9:27 PM in response to c_brentnall

Mine was doing the exact same thing! Guess that's what I get for not constantly buying a new computer after 4 years... Wish these things were built for longevity rather than upgrades. Anyway, the way I fixed it was by inserting my headphones into the jack again and waiting (watching for) system preferences>sound>output to show it changed from "digital out" to "headphones" then I removed the headphones and it went back to "internal" again. Must be the monitor/switch/whatever in the jack messing up.

Nov 23, 2017 3:28 AM in response to c_brentnall

I'm having the same problem.. But for me I've tried all the recommended ways to solve this but I still can get it to work. I'm on the Air 11" and I never could get this to work. Tried plugging ear plugs in but there is still no sound. I can get sound only from connecting to bluetooth speakers or through hdmi cables to a projector. And both when connected don't show any in built speaker. Tried toothpick, earpiece, cotton buds but to no avail. HELP

Mar 7, 2011 4:49 PM in response to c_brentnall

I'm having he exact same problem. I was using the headset output last night and it worked fine. I am a developer and I'm working a music app for the iPad, so perhaps it had something to do with that. But, when I noticed my sound wasn't working, I checked teh Sound->Output devices and only Digital Out and Screenflick Audio Device showed up. No Built-In Speakers. 😟

Mar 30, 2011 12:10 PM in response to thonk

Hi Folks,

I had the same problem. I believe it is just a corrupt audio .plist file in the system library. Here is what I did and it fixed the issue. No guarantee but this is what I did.

1) In a finder window select/open: Macintosh HD>Library>Preferences>Audio
2) copy any files in this audio folder onto your desktop to keep as a backup.
3) delete any files in the audio folder
4) Open the System Preferences Audio Panel and click a few things to force the computer to generate new uncorrupted plist (or preferences list) files in the folder you just purged.
5) If all goes well and you have sound through a built-in-speaker audio output option delete the "backup" .plist files you copied to the desktop.

Best of luck!

Apr 8, 2011 1:14 PM in response to Lee Adair

Found this tip on another forum and it worked for me:

-Open your Sound control panel so you can see your output options

-Get a toothpick, blunt the end just a bit, and gently poke around the back of your digital jack. You'll feel it give just a bit as the switch back there gets pressed.

-Watch the output in the control panel as it turns from Digital Out to Built-In Speakers!

It took a bit of poking, and I never saw the infamous red light showing I was in digital out mode, but it did finally let go and reset my output. YMMV, but give it a try.

Built-In Speakers Sound Output Missing.

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