Why is my computer volume not working?

My computer is refusing to emit any sound from its internal speakers. It will not play any sound regardless if I plug in headphones, hook it up to speakers, or when I just try and use the internal speakers. What is going on?

There are many possible causes for this issue. Take each of the following steps that you haven't already tried.
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. If you've installed a software equalizer called "Boom" or anything similar, update or delete it and restart.
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 the Output tab. If the Mute boxes are checked, uncheck them. Move the Volume sliders all the way to the right.
7. If a red light is coming from the audio-out port, 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. Reinstall OS X after backing up all data.
14. Make a "Genius" appointment at an Apple Store.

Similar Messages

  • Why does my iPad volume not work all the time

    My iPad volume works only part of the the time. Is there something I'm doing wrong?.

    My iPad volume works only part of the the time. Is there something I'm doing wrong?.

  • Why my wi-fi is not working, and it says bluetooth is not working too??

    Why my wi-fi is not working, and it says bluetooth is not working too??
    My bluetooth n wi-fi are both unavailable! i had already restore my device, but it still doesn't work!!
    My name is juniper, i am from Taiwan! Any know what's wrong with this piece of XXXX!!?? Help me plzzzz!!

    Hi ,
    I am a specialist in Computer and Information Systems e. I am 40 years old from Egypt
    I have Iphone 3g 8g and my SN  868391XZY7H
    Tunes update killing my Iphone software , 3 days my Iphone not working  Although I am go to download 100% update and my iphone installed all  a software update but I don’t know what happened why my Iphone not working  ?
    now some one help me and he installed software for my iphone  and it is working but  Wi-Fi and Bluetooth not working
    I need help me because    Tunes   update from killing my Iphone  ??.
    i want my old Iphone software please
    thank you somuch
    [email protected]

  • Why is exporting to PDF not working?

    Why is exporting to PDF not working?

    Dear Claudio,
    I know it wasn't much to go on but I got your attention!
    I work for a charity and use a program called "Donor Perfect".
    It has a feature that when you generate a report it gives you the option to export to MSWord, Excel, and PDF.
    Below is the step by step description of what happens.
     After log on ......
         1. Click on Reports
         2. Listings
         3. Report Category(any)
         4. Select Record type(any)
         5. Select report options (any selection filter that fits or Build a filter) and sort order(any)
         6. Enter title (accordingly)
         7. Click on Preview
         8. When next screen opens with report visible - in "Report Print preview" line above report choose PDF icon
         9. Export to PDF window opens
         10. click on Page range-ALL
         11. What to print-All pages in Range
         12. Save as C:\DPW32\dpsumm.pdf
         13. collate
         14. number of copies(1)
         15. Click on "Screen" 
         16. Click on "Display Conversion Status"
         17. Then "OK"
         18. After conversion status reaches "100%" nothing happens -screen does not change!
    Then I minimize DP screen and I go to Start menu 
         1. Click on Start
         2. Then "My Computer"
         3. Local Disk "C"
         4. Dpw32
         5. Look for "dpsumm" file with today's date
         6. Size of file says 0 KB and that's it!!!!
    In previous versions of DP (8 and 9)
    the PDF would open on the screen as soon as the Step 18 was finished, then I could save it with an identifying name to a different folder and use it as an attachment that a Donor could receive by e-mail.
    I hope I can get back to that because now I have to convert to "Word" (Which takes a long time)then from that I have to create PDF from Acrobat. too many steps ..... if I have 20-30 reports it's too cumbersome.
    Waiting for your suggestions,

  • Has anyone been able to contact Adobe to learn why their Flash Player does not work on Mac OS 10.6.8, no matter how many updates you install?  This seems like a big error by Adobe.

    I have thee Mac computers with Mac OS 10.6.8, one of which is a Mac Pro.  No matter how many updates I install from Adobe, their Flash Player does not work on any of these 3 computers.  I don't know how to contact Adobe Systems about this problem, but I think it is their responsibility to make sure that their so-called "universal" software works proplerly on a relatively recent operating system like OS 10.6.8 that is still in widespread use.  When you install the updates, nothing happens -- not even an error message.  What is the point of a universal player that is not universal?  It works fine on my MacBook Pro with OS 9 Mavericks, but it does not work at all -- indeed, has never worked -- on my 3 Macs with OS 10.6.8.  Has anyone contacted Adobe Systems to find out why the Flash Player does not work with OS 10.6.8 and what they plan to do about it?

    Where are you getting Flash from?
    Get the appropriate dmg installer here and then run it.
    http://www.adobe.com/products/flashplayer/distribution3.html
    If it still won't install, do these two things: First uninstall any Flash by going into the second level Hard Drive Library>Internet Plug-ins, and trash the Flash Player.plugin and flashplayer.xpt. Then boot into Safe Boot, Shift at the startup chime (give it much longer than a usual boot) and run the installer while booted in Safe Boot.

  • My IPad cannot download live Tv from skygo. I have no problem with my lap top so I assume the broad band is okay. Can anybody suggest why the live streaming will not work on my iPad one.

    My IPad cannot download live Tv from skygo. I have no problem with my lap top so I assume the broad band is okay. Can anybody suggest why the live streaming will not work on my iPad .

    Are you using the Sky Go app to try and watch it ? If so are you logged in with your Sky account ?
    If you are using the app then you could try closing the app completely and see if it works when you re-open it : from the home screen (i.e. not with Sky Go 'open' on-screen) double-click the home button to bring up the taskbar, then press and hold any of the apps on the taskbar for a couple of seconds or so until they start shaking, then press the '-' in the top left of the Sky Go app to close it, and touch any part of the screen above the taskbar so as to stop the shaking and close the taskbar.
    If that doesn't work then you could try a reset : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.

  • Why does my card reader not work on my iPad since upgrade?

    I use my iPad mini to download photos from my camera when I'm on the road. In the summer I bought the "3 in 1 Card Reader Adapter Cable Camera Connection Kit, 3 Port Card Reader for iPad 4 and iPad Mini by Eurekka" and it worked wonderfully. I was able to download photos (jpg and RAW) directly to the iPad and off the camera, and once home it was a flawless upload to my iMac.
    However, once I upgraded to iOS 7 last week I get a message saying the device is not supported. What gives? Will this be fixed or will Apple products only accept Apple accessories from now on?

    No but I was just trying to find a way in to your help desk. I didn't find 
    your web page very helpful in this regard.
    Douglas Whiteley
    In a message dated 10/05/2012 20:43:50 GMT Daylight Time, [email protected] 
    writes:
    Re:  why does my adobe reader not work
    created by Claudio  González
    (http://forums.adobe.com/people/Claudio+González)  in Adobe Reader - View the full  discussion
    (http://forums.adobe.com/message/4395059#4395059)

  • Why is my apple id not working

    I wonder why my apple id is not working please help me out FAST or ASAP

    How about some more information. Any error messages? What happens when you try to make a purchase or download an app?

  • Why magic jack apps is not working on my iphone 5?

    why magic jack apps is not working on my iphone 5?

    I have the same problem.  I contacted magic jack, and after more than an hour of waiting, here is the final part of our discussion, before I had to leave to go to work:
    Me:  the magic jack app has worked fine for months unregistered. Never had a problem before. I must go to work now. I will leave the chat box open. if you could, send me a list of possible fixes and I will try to apply them when I get back. Please write in detail. Is there a way that I can get in touch and get a senior rep on right away to handle my problem when I get back, or do I hae to wait again when I call next time?
    Kara: I am one of the senior rep here and in fact one of the supervisors . Here is what you are going to do:
    Kara: Once you register the magicjack app into your Iphone, we can refresh your account connections here manually however if you dont register it, no options in our end to work for your connections since the MJ app is not used to be registered. No worries, we can remove your account if you dont want the service anymore for free.
    +++++++++++++++++
    So, it would seem that either there is a problem that they don't know about, or else magic jack is trying to force everyone to not choose option 3 on the opening screen, the one which allows you to continue to make a call without registering.
    Has anyone received a solution to this problem from magic jack support?

  • Why is my Apple ID not working in iTunes and App Store on my iPhone? Nothing happens if I click buy for apps or music. If I then go to settings/iTunes App Store my Apple ID is not there. If I then enter ID and password it does not save or link to account?

    Why is my Apple ID not working in iTunes or App Store on my iPhone? When I try to buy apps or music it asks for Apple ID so I enter my info and nothing happens. When I go to settings/iTunes App Store my Apple ID is not there. When I enter my ID and password it does not save or link to account. I do not have this problem with iPad ID is stored and can be used in App Store and iTunes. I have just upgraded to 5c and it's still a problem.

    LeesaHeeley wrote:
    When I go to settings/iTunes App Store my Apple ID is not there. When I enter my ID and password it does not save or link to account.
    When fist setting up your new iphone you will be asked to log in with an apple id and password. If this did not happen you can then do as you suggested going to settings to itunes and app store and add your apple id login. This apple id login must have already been created for the iphone to accept it. If this apple id is already created but is not being accepted by your iphone you then should shut down your iphone and restart the device.
    Good luck.

  • My iPod touch needs to be restored. however, all of my movies/apps/songs/photos are not backed up on my computer because the shop on my computer does not work. can i still get the memory on my iPod touch 32gb back?

    my iPod touch needs to be restored. however, all of my movies/apps/songs/photos are not backed up on my computer because the shop on my computer does not work. can i still get the memory on my iPod touch 32gb back?

    If you weren't able to sync the purchases to a computer previously and now your iPod needs to be restored so you can't sync it now, then you may be out of luck and will need to purchase your content again. Officially Apple does not allow redownloads of purchased items other than iPhone/iPod touch applications and iBooks. The official statement of their policy can be found here, among other places.
    You can try contacting iTunes Store Customer Service (select the "Music Purchases" or "Video Purchases" category, as appropriate, then "Lost or Missing Items". You'll find either an "Express Lane" button - just follow the instructions to get to the contact form - or an "Email Us" button) ") and explaining what happened. Reportedly in some cases Apple has allowed redownloading on a one-time basis. But don't count on it. 
    Good luck.

  • TS2771 i am trying to fix my ipod touch tryed password to many times the problem is my usb port on my computer does not work what else can i try?

    my sons ipod is disabled from trying password to many times my usb port on my computer does not work. what else can i do to get this disabled off my sons ipod please help!!!

    The only thing you can do is place the iPod in Recovery mode and restore via iTunes on a computer. It is a good security feature.

  • HT1589 how can i transfer my library to a new computer? old computer is not working

    how can i transfer my i-tunes library to a new computer? my old computer is not working.

    It has alwasy been very basic to always maintain a backup copy.  Have you failed to do this?  not good.
    You would have to take the hard drive out of your old computer and connect it to your new and transfer the info.

  • Why does drag and drop not work?

    Why does drag and drop not work?

    Do you mean that when you move files on the Desktop, they don't stay where you put them ?.
    If so - use Finder - View menu - Show View options & choose 'Arrange by' : none
    If not - please describe exactly what the problem is.

  • Why does my free trial not work?

    Why does my free trial not work?  This is intentially misleading.

    You need to provide a better description of what isn't working, system info and all that. This could be all sorts of technical issues or your trial could simply have bombed itself. In the latter case there is nothing you can do:
    Adobe trial software expired early
    Anything else like iunstall issues can in most cases be sorted out...
    Mylenium

Maybe you are looking for

  • Problems with Apple Preview filled forms and compatibility with Windows?

    Anyone else having problems with Apple Preview filled out forms and compatibility with Microsoft Windows after Lion? I've had it happen recently with two different people, where the data I had entered on a fillable PDF form could not be seen by Micro

  • E-Recruiting important questions

    I'm implementing the E-Recruiting and I have two important questions for this Project: 1 - The business want to capture mobility (willingness to relocate / travel) at the time of position application. Is there a standard field for store this informat

  • Can't open RoboHelp 9 project

    was recently upgraded to Windows 7 and now I get an error message that RoboHelp 9 cannot load the database - database is stored on a removable drive - not the laptop - Help Please :-)

  • Execution of BAPI Webservice from webdynpro

    Hi We have a BAPI called CreateUser in backend system and this standard BAPI is exposed as a webservice and not published in ESR or UDDI. Just we have  wsdl. I want to develope a WD4J application to execute the BAPI Webservice. Can any body please te

  • Emails & Error Messages

    Hi Everyone, I love my 8900 but recently is has started to drive me nuts for two reasons and I wonder if you can help. I keep receiving emails and in the subject line it says: RIM_bca28a80-e9c0-11d1-87fe-00600811c6a2. These emails are being sent by: