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c_brentnall Level 1 Level 1 (0 points)
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)
  • brainware Level 1 Level 1 (0 points)
    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.
  • kesas Level 1 Level 1 (0 points)
    I am having the same issue please help......built in sound card does not show up in system preferences>sound


    thanks
  • thonk Level 1 Level 1 (0 points)
    I suddenly have the same problem... I'm running OSX 10.6.6, 2.4GHz Intel Core 2 Duo Macbook Pro 17" from late 2007. help!
  • macaudio Level 1 Level 1 (0 points)
    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!
  • Lee Adair Level 1 Level 1 (0 points)
    Last night I started having the same issue with a Titanium MB pro. I tried following your recommendation, but no love here. Did this just start with a recent OS update, or has this been happening before but someone just started this thread recently?
  • maligned Level 1 Level 1 (10 points)
    Same issue. Any tips?
  • Lee Adair Level 1 Level 1 (0 points)
    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.
  • maligned Level 1 Level 1 (10 points)
    I tried this with no success. Any other ideas?
  • zenasprime Level 1 Level 1 (0 points)
    The q-tip trick worked for me. Thanks.
  • shorthairhippie Level 1 Level 1 (0 points)

    I had this problem after I plugged my Mac into some speakers at a party....  the next day I had no sound and a red light could be seen through the audio output hole.  The toothpick did the trick for me, thanks!

  • jamimac Level 1 Level 1 (0 points)

    hi all,

     

    just FYI, same problem just started, same vintage MBPro... the toothpick worked!

     

    VERY gently push pick till it stops, move in VERY gently circular path around the jack walls. O.

     

    i tried the prefs rebuild first, but it didn't work.

     

    (physical reality wins again ;-)

  • Azhrei Level 1 Level 1 (0 points)

    For anyone else coming here with this problem...

     

    I didn't want to go poking around with a toothpick (and certainly not anything metal!) so I just plugged in a set of regular headphones, left them there a couple seconds, and pulled them out.  When I plugged them in and immediately pulled them out it didn't reset everything.

     

    I had tried using the earbuds+mic that came with my iPhone 4S (which works fine, btw) and that's what triggered this issue.

     

    I believe it's software more than hardware, but since I don't know what the inside of the jack actually looks like that's purely speculation.

     

    HTH.

  • CaraleighB Level 1 Level 1 (0 points)

    Toothpick worked for me and the problem was triggered by the earbuds from my iPhone 4S too.

  • KLLam Level 1 Level 1 (0 points)

    exact same problem here! mine is surely a problem of software. I tried doing the PRAM trick and I got the 'bong'' sound after my MBP restarted. But when it proceeded to the login page, the sound is disabled again...

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