MacBook Pro: No Audio from Internal Speakers - Solution

Issue: (MacBook Pro late 2010) Absolutely no audio to internal speakers after OSX has booted up.
Digital Out is the only available output device shown within System Settings
Analog headphones work
Digital Out works
Bootup "BONG" works (and is of course now perma loud after PRAM reset... uggh)
Things I have tried from least drastic to greatest in the following order:
sudo killall coreaudiod
Clear PRAM
Using Deploy Studio (first performing DiskUtility format as well):
re-image MacBook with a the same original OSX Lion image it has been working with for the past 3 months
re-image MacBook with previous Snow Leopard image (obviously used to work)
Not using Deploy Studio (but first performing DiskUtility format, using original supported installation media: DVD, Apple Store):
Installed Snow Leopard (no audio), then upgraded to Lion through Apple Store (still no audio)
Installed Snow Leopard using installation DVD provided with MacBook Pro (< waste of time as the above step didn't work either, but including here for completeness)Note: Even the "Welcome to Mac" intro movie is silent, audio controls are crossed out
Gentoo Live DVD _works_ (after enabling Front Speakers using alsamixer other wise it was also muted and no audio would work except through head phones)
Well holly $%#$%,  %^#&^. After performing step 5, and enabling Front Speakers using alsamixer, I now have audio in OSX Lion
I believe this happened after I used the Mini Stereo jack for Head Phone use.
How in the ______ did this happen? And why did it take a third party software to _somehow_ enable audio to the internal speaker _after_ OSX Lion completely booted?????
Note to all: You can probably use a Ubuntu Live CD to perform step 5. Or any live cd that loads up Intel Audio drivers.
Jason Miller

I appreciate your response. I still have concerns:
The red-lite is off when my issue is happening.
The red-lite is on when my issue is happening.
It was not consistent. My concern is the Macintosh operating system not detecting the change. My other concern is it can _not_ be only a hardware switching issue, as Alsamixer, a software program, can make the switch toggle between off or on. If it was a hardware-only issue, Alsamixer would be a fail. And, if it is actually a hardware-only issue triggering a software 1 or 0 switch somewhere:
My final concern is 'where is this setting being stored' as clearning PRAM and reinstalling entire operating system after opertating system (Leopard to Lion and back to Leopard) after a disk wipe has no effect.
I guess it sounds to me, that OSX tries to be too user-friendly by not allowing peeps to change those options themselves. Is there a dscl command switch I can use to manually override such an effect? (Just in case I don't happen to have anything to stick into the mini-jack port)
Regardless, your answer is correct. Thank you both (Ciao and Allan Jones)
Jason

Similar Messages

  • Macbook Pro no sound from internal speakers or headphones

    I have a macbook pro (mavericks). There is no audio coming from the internal speakers and when headphones are plugged in there is still no sound. There is no red light coming from the headphone port either. Any advice?

    Try plugging the headphones in and out 10-12times, while toggling the volume and mute buttons.
    Have you tried cutting the end off a cotton swab and GENTLTLY swabbing the the headphone swabbing the port 9;00 clock to 3:00 clock, there is a micorswitch that some times gets "hung up" and this can free up the witch.
    Also you can try going to to applications/utilities/ Audio MIDI Set up. app and see if you can select built in there.
    To get more aggressive you can try these options:
    Close all windows and quit all applications.
    Click "Go" menu in the Finder menubar.
    Select Computer, then Macintosh HD > Library > Preferences
    Open "Audio" folder.
    Right click these two files and select "Move to Trash".
    com.apple.audio.DevicesSettings.plist
    com.apple.audio.SystemSettings.plist
    Close the window. Restart the computer
      Go to Applications/Utilities/Audio MIDI Setup/Built-In Output/Output and in Format change from the default 2ch-24bit integer to any other format (say, 2ch-32bit float). This should activate the headphone jack.  I moved the format back to the original 2ch-24 integer setting and the headphones continued working.  So it seems that (for some reason) the original default setting does not recognize a headphone being inserted, but after performing this "resetting" it seems to come to its senses and behave properly from then on
    if these do help your issues, please post back, there may be other options.
    It is best to start a new post, rather adding on to an already existsting, as you will get more people looking at it, and thus offering more advice/sugestions.

  • Macbook Pro - No Sound from internal speakers + No red light

      Okay so I know this a very famous issue (I've seen over a hundred threads with people having the same problem) but the problem I'm having is something I haven't seen anywhere else. I recently tried  to fix my headphone jack on my Macbook pro early 2008 model when it DID have a red light emanating from it but when I finally managed to turn it off with a little wiggle from my paperclip the sound still didn't turn back on. In my system prefs my sound output still displays "Digital Out" and no other option for internal speakers. I know my speakers are fine because I can hear the startup chime. Also, I had a broken piece from my headphones stuck inside the jack a few years back and I retrieved it in....let's just say, not the most professional way to do it (I completely destroyed my headphone jack while attempting to retrieve the broken piece and now the hole is too wide for any headphones), though afterwards the internal speakers still worked for a while, it was just the headphone jack that was messed up. 
    Basically what I'm trying to say is: is there a way to enable my internal speakers without using any hardware methods? Because I tried the paperclip fix and the red light did turn off, but still no audio + sound prefs still shows 'digital out'. I really don't care much for the headphones jack anymore because I'll just override it with some USB headphones.
    Thanks in advance
    Some Images:
       'Only displays Digital Out'
    'My jacked up headphone jack (no pun intended, although very relevant)'

    I agree Nick - it is a concern especially on such a basic function (sound) - Linc is right, the issue is microswitch, sounds like a bad design or a huge batch of sub quality switches, checking the forums this issue is common on MBP's.
    Judging by the date and lack of further activity I assume you managed to get yours fixed at the genius bar ?
    I finally fixed mine myself but posting reply for others who have same issue as this - however buyer beware folks, try this at your own risk !!!
    The fix won't be liked by Apple Support, the genius bar, or the repair shops but it worked for me after over 12 months of using headphones / external speakers - WHAT A PIA !
    Method -
    Held  Macbookpro on it's side with screen open and headphone/ audio  port facing toward ground.
    Took WD40 can with straw dispenser and placed straw inside audio port - sprayed 3 or 4 one second burst of WD40 into port.
    Held MBP that way for 30 seconds giving MBP a shake to drain WD40 out
    (I performed this whole excercise outside where the WD40 could drain out without an issue ;-)
    I then took an old set of headphones and re-inserted / removed them from the audio port approx 20 times in and out with music playing on the MBP -  intially when inserted music will only come from headphones then eventually MBP internal speakers start working !
    I've tried everything else including the cocktail stick and bent pin inserted inside the port to try and free micro switch - nothing worked it was stuck fast.
    As stated, can't endorse this for anybody else - you do so at your own risk - just stating this is what I did to get mine working again !

  • HT2494 2012 MacBook Pro - no sound from internal speakers, red light in headphone port

    Mid 2012 MacBook Pro 15".
    I normally use external speakers plugged into headphone jack.
    The other day I unplugged the external speakers and when I re-booted my Mac, I got the start up sound
    but I have no sound coming from my internal speakers.  In System preferences sound output I see no entry for internal speakers.
    I also notice a red light shining in the headphone jack port.  I see on youtube that this problem is rather widespread.
    Some suggest using a paper clip to try to turn the light out, but I am not doing that.
    I have Lion installed, tried using the MIDI-app to reconfigure the speakers, but I only get sound if the headphones are plugged in.
    Is this a software or hardware problem?
    I have a genius bar appointment today at my local Apple retail store, and my mac is still on warranty but this
    is troubling that you spend $2300 for a laptop and after a bit of regular use the internal speakers no longer work.
    Any ideas?
    thanks.

    I agree Nick - it is a concern especially on such a basic function (sound) - Linc is right, the issue is microswitch, sounds like a bad design or a huge batch of sub quality switches, checking the forums this issue is common on MBP's.
    Judging by the date and lack of further activity I assume you managed to get yours fixed at the genius bar ?
    I finally fixed mine myself but posting reply for others who have same issue as this - however buyer beware folks, try this at your own risk !!!
    The fix won't be liked by Apple Support, the genius bar, or the repair shops but it worked for me after over 12 months of using headphones / external speakers - WHAT A PIA !
    Method -
    Held  Macbookpro on it's side with screen open and headphone/ audio  port facing toward ground.
    Took WD40 can with straw dispenser and placed straw inside audio port - sprayed 3 or 4 one second burst of WD40 into port.
    Held MBP that way for 30 seconds giving MBP a shake to drain WD40 out
    (I performed this whole excercise outside where the WD40 could drain out without an issue ;-)
    I then took an old set of headphones and re-inserted / removed them from the audio port approx 20 times in and out with music playing on the MBP -  intially when inserted music will only come from headphones then eventually MBP internal speakers start working !
    I've tried everything else including the cocktail stick and bent pin inserted inside the port to try and free micro switch - nothing worked it was stuck fast.
    As stated, can't endorse this for anybody else - you do so at your own risk - just stating this is what I did to get mine working again !

  • Macbook pro doesn't recognize internal speakers

    my macbook pro  doesn't recognize internal speakers and there is a red light inside the headphone port.  How can I get the speakers working again?

    In addition to what dominc23 suggests, you may try jiggling a toothpick or cocktail stirrer in order to trip the internal switch.  If all fails, the Apple store genius bar is you last resort.
    Ciao.

  • No Audio from Internal Speakers after a fresh install of Windows 7 Pro

    T400S - after a fresh install of Windows 7,  theres no audio from the Internal speakers. When I plug an external speakers there's audio. I also install the  audio drivers from the Lenovo site.  Thanks 

    Does your sound bar in the Sound Windows go up and down when you play music?
    Regards,
    Jin Li
    May this year, be the year of 'DO'!
    I am a volunteer, and not a paid staff of Lenovo or Microsoft

  • No audio from internal speakers

    My Macbook will not play audio from the internal speakers. It will, however, play through a set of headphones or external speakers. I have tried going to the preferences, but all it shows in the "sounds" area is digital out and there are no controls. I have also tried starting in safe mode and then rebooting, and still no sound from the internal speakers. Any thoughts?
    Thanks,
    Robin

    Normally when the digital audio has been switched on there is a red light coming from the headphone jack. You could still see if clicking the switch works but with no light there may be a different problem involved and you may need to talk to Apple support.
    Try resetting the SMC (System Management Controller) and/or PRAM (Parameter Random Access Memory). Mac OS X: What's stored in PRAM?
    If this doesn't help call Apple or go by a store for help

  • HT1338 MacBook pro will not detect internal speakers.

    This issue seems to have cropped up after hooking up to a Jambox voia blue tooth. I have "stopped using headset" as audio device. The volume control on my keyboard a has that locked icon disallowing me from adjusting volume. How do I go about reinstating my internal speakers as they do not show up in system preferences dialougue box for sound?

    I HAVE SOLVED THE PROBLEM: USED MY HEADPHONE JACK AND IT SEEMS TO HAVE DISLODGED SOME GUNK IN THE PORT.

  • No audio from internal speakers until headphones plugged in

    This is for a Hp dv 6 with beats audio.I have no audio from the internal speakers until i plug the headphones in , when I get sound from both the internal speakers and the headphones.
    I did find some people had the same issue which was resolved after changes in the realtek HD audio controller but I cannot find the audio controller on my laptop , which I am sure is different from the realtek audio drivers
    I have already uninstalled and reinstalled the audio drivers without any success.
    avi

    Thanks avi,
    Take a look at this document and let me know if the troubleshooting steps help to resolve your issue.  Please let me know.
    Good luck!
    ↙-----------How do I give Kudos?| How do I mark a post as Solved? ----------------↓

  • MacBook Pro 13" Late 2011 Internal Speakers Issue

    Every time I use my internal speakers (especially on high voice), my speakers' strength seems to lessen after few seconds of sound. But after about 30 minutes or so, the speakers are back to normal, but the same conflict repeats again after using the speakers again.

    You may try a PRAM reset.  If that does not resolve the issue, make an appointment at the Apple store Genius bar.
    Ciao.

  • Macbook 2008 no audio from speakers - can't disable digital audio - red light in headphone jack

    Looking for help with this problem, that seems like a lot of people had in the past and still have, but I see that a couple of discussions on it here have been archived. Too bad, as the problem continues.
    I seem to be having the same problem with my late 2008 white 2.1Ghz Macbook.
    I had used earphones a few times with movies and iTunes, with no problems. Now I've just rebooted to find that I have no audio from internal speakers (the boot up chime works though). Earphones work perfectly.
    There is a constant red light in the earphone jack. The volume icon in the top menu bar is greyed out. In the Sound preference panel, Built-in Speakers are not available as an option for audio out. The only option is Digital Audio. If I connect earphones, then they are available as the only option.
    I have tried all the various methods that people have recommended, to switch off digital audio through the earphone jack: trying to flip the little switch with a toothpick, paper clip, etc., as well as cleaning around inside the jack with a bit of rubbing or cleaning alcohol; also tried inserting and removing the earphones plug several times, while pushing the volume buttons on the keyboard. Nothing works.
    I did get something from inserting/removing the earphone plug, as I seemed to be able to adjust volume from the keyboard, but I never got sound out from the speakers; the volume window seemed to indicate increase/decrease volume as I pressed the keys, but after a few seconds the volume window greyed out again with the No Entry symbol.
    Trying to flip the digital audio switch in the jack occasionally gets the red light to turn off for a couple seconds, but then it comes back on.
    Is there any particular problem with this that can't be solved by the aforementioned methods, that many people have used to solve it in a simple manner? Could my problem be more serious? Is there anything I could do if I opened up the Macbook, e.g., somehow to manually turn off the digital audio switch?
    Any help greatly appreciated.

    Got it fixed with a small flathead screwdriver with a fairly wide blade. Opened iTunes, started playing songs, had red light in headphone jack, as per usual with this problem.
    Put screwdriver in jack, with blade more or less vertical, started moving it around inside of jack in clockwise motion, pressing pretty firmly. Took just a couple of "swirls" around the inside of the jack and then audio finally turned on! Was a bit of a hassle, but finally worked.
    Many thanks to all for their suggestions.
    P.S. re. advice not to use metal object. This was the only way I was finally able to solve the problem (i.e., using the small screwdriver). I didn't see where using a metal object would be a problem, seeing as the headphone plug itself is metal. Anyway, it worked.

  • When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

    When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

    If you see a red light in the audio output port, then the internal switch is stuck.  Insert the earphone plug a few times and see if you can trip the switch.  If that fails, insert a cocktail stirrer and the like and jiggle it around inside.  If that fails, take it to an Apple store and have the technicians at the genius bar do it for you.
    Ciao.

  • My mac desktop will not provide sound from internal speakers.  when I go to audio devices window it only shows airplay.  How can I get internal speakers back.

    My mac desktop will not provide sound from internal speakers.  When I go to audio devices window it only shows airplay.  How can I get internal speakers back.

    There are many possible causes for this issue. Take each of the following steps that you haven't already tried. Some may not apply to your model. Back up all data before making any changes.
    1. Start with the steps recommended in this support article. Don't skip any of the steps. It's the starting point for further efforts to solve the problem.
    2. Run Software Update and make sure you have a fully up-to-date installation of OS X.
    3. If you've installed an application called "Memory Clean" or any other third-party software that is supposed to "clean" or "purge" memory automatically, remove it according to the developer's instructions and restart. You should do that even if the software is not causing the problem, because it's useless.
    4. Other third-party software that has been reported to interfere with sound output includes "Boom" and "Samsung Kies." If applicable, uninstall according to the developer's instructions (not by dragging something to the Trash.)
    5. If an AirPlay device is selected for sound output from iTunes (or from other applications via third-party software such as "Airfoil"), deselect it.
    6. Launch the application "Audio MIDI Setup" by entering the first few letters of its name in a Spotlight search and selecting it in the results (it should be at the top.) Select Built-in Output from the list on the left. If the Mute boxes are checked, uncheck them.
    7. If a red light is visible in the audio-out port when sound should be playing, the internal switch is stuck in the position for digital output. You may be able to free it by inserting and removing a mini-stereo jack of the proper size. Inserting any kind of tool in the port may cause damage that won't be covered by your warranty.
    If there's no red light, the switch may still be stuck in the headphone position. Try to free it the same way.
    8. Disconnect all wired peripherals except keyboard and mouse, if applicable. If more than one display is connected, disconnect all extra ones. Restart and test.
    9. If you have a MacBook Air, turn off Bluetooth and restart.
    10. Start up in safe mode. Don't log in; just restart as usual when the login screen appears. When you do, make sure the words "Safe Boot" do not appear in the login screen. If they do, the system is still in safe mode and sound won't work.
    11. Reset the NVRAM.
    12. Reset the SMC.
    13. Triple-click anywhere in the line below on this page to select it:
    /Library/Preferences/Audio
    Right-click or control-click the highlighted line and select
              Services ▹ Reveal in Finder (or just Reveal)
    from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You may be prompted for your administrator login password. Restart the computer and empty the Trash. Recreate your settings in the Sound preference pane.
    *If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination  command-C. In the Finder, select
              Go ▹ Go to Folder...
    from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
    14. Reinstall OS X after backing up all data.
    15. Make a "Genius" appointment at an Apple Store.

  • Compaq presario laptop dv6109ea audio is not changing to headphone from internal speakers

    hai when i installed windows in my compaq v6109ea laptop the audio is coming from internal speakers.when i want to talk to somebody is not changing to headphone speakers.please send me the solution

    Hi:
    Does your notebook have an Intel or AMD processor?
    If it has an AMD processor, follow the instructions I posted at the link below for how to get the XP audio driver to work.
    http://h30434.www3.hp.com/t5/Notebook-PC-Sound-and-Audio/multimedia-audio-controller-driver-for-wind...
    If it has an Intel processor try doing the same thing but with this driver instead...
    http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-44349-3&cc=us&dlc=en&lc=en&...
    You would browse to:  C:\SWSetup\sp28552\SMAXWDM\W2K_XP\smwdmATI, and select the SoundMAX Integrated Digital Audio device from the list.
    There are no Vista or W7 drivers for the card reader (Base System Device), so try the XP driver.  I think it will work.
    http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-29677-1&cc=us&dlc=en&lc=en&...

  • After I upgrade from tiger to snow leopard, my macbook pro more often freezes. Any solution? Do I need to increase memory? If so, how?

    After I upgrade from tiger to snow leopard, my macbook pro more often freezes. Any solution? Do I need to increase memory? If so, how?

    After I upgrade from tiger to snow leopard, my macbook pro more often freezes. Any solution? Do I need to increase memory? If so, how?

Maybe you are looking for

  • How to delete columns in table control (tab Services) for transaction ME51

    Hi, gurus! We're facing this problem in our upgrade: we have a batch input (ME51) in order to create purchase requisitions, but we get an error with the dynpro data (program: SAPMM06B, dynpro: 0102). We are sure we populate all the required fields in

  • How to make Customer Taxable in SAP

    Hi Gurus, I am new to SD. I am creating a  Customer invoice..and i want him to make him taxable...how do i do it....i am unbale to do in SAP..where as the user can make him taxable in their legacy system can any one tell me the steps involved for thi

  • Different WEBUI Layout

    Hello Experts, System - SAP CRM 7.0 EHP 1 - WEB UI We have a scenario as mentioned below - Within the organization we have say 3 brands Brand A Brand B Brand C Every brand has its own sales employees who sell specific brand (every brand has its own s

  • WLS 9: WebServices using XMLBeans

    I'm attempting to implement a web service on WLS 9 (without workshop) that uses XMLbean types as parameters. The docs for jwsc hint that XMLBeans are given special treatment when used as web service arguments, but I have had no luck creating a functi

  • Ctrl+F5 and Browser Back Button

    I have read many posts about these issues, but did not reach to any result. I realize that they are a kind of validation, but how can we work around them? I have tried to set "EnableTokenValidation" property in the page definition to false, but this