No sound from my Macbook Air. When I go to system preferences and click on Sound Output there are no devices to select from and the Mute box is checked.

There is no sound from my Macbook Air even when I turn it on.  When I go to System Preferences and click on Output there are no options.  The Mute box is also checked, but I cannot uncheck it.  Also when I try to play any video from the web, it stops playing after a second or so.  I have turned off my computer and turned it on again which did not help.

Try these
PRAM Reset: http://docs.info.apple.com/article.html?artnum=2238
SMC Reset: http://support.apple.com/kb/HT3964

Similar Messages

  • HT201250 i was trying to manually erase files from my macbook air. at one point, my system preferences disappeared from the dock and i had a pop up message telling me the application was 'incomplete'. I tried to reinstall iLife but i wont work.

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    Try a few things: 1) restart in safe mode (restart holding the shift key) and this will repair the drive (if need be) and trim/delete cache files. Restart normally.
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  • I have horizontal lines when printing from my MacBook Air. Its nothing to do with my printer, as am now on to my third new printer, having returned the other two, saying they were fault. Now I know they weren't. Its got to be something to do with macbook.

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  • When I go to System Preferences Network "Click the lock to make changes",... it ALWAYS UNLOCKED.   That is even if I have locked it before last shutdown. Should it not stay locked until I unlock it again as administrator?

    When I go to
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    From the menu bar, select
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    does the sound work with headphones plugged in?  Or no sound through the external speakers or headphones?

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    OS X Recovery
    OS X Recovery (2)
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  • TS5150 I got my Apple TV a year ago as gift. I was mirroring from my Macbook Air ok until today.  I can mirror video but the sound stay on my Mac.

    When I use Airplay, I can mirror video from my Macbook Air but there was no sound from TV (the sound on my Air still on).  I had use my Mac to do Airplay for six months without problem until now. My wife can use her iPad-4 to watch TV with Airply fine without the sound problem.  My Macbook Air was purchased in summer of 2011 running Marverick at the moment.  Can you help?

    Welcome to the Apple Community psalay.
    Try the following steps, check whether things are working after each step where appropriate, before trying the next.
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        5.    Restart your router. (Also try removing it’s power cord for at least 30 seconds)
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  • My apple tv was previously and now all of the sudden stopped playing sound from my macbook air via airplay

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    Process of elimination diagnosis!

  • When I plug in my iPhone to sync, it starts but does not complete the process and several pieces of data are not being transferred to my iPhone from my MacBook Air.

    Problem:
    When I plug in my iPhone to sync, it starts but does not complete the process and several pieces of data are not being transferred to my iPhone from my MacBook Air.
    Any help that you can provide in helping my iPhone accurately sync with iPhoto and iTunes will be greatly appreciated.
    Symptoms:
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    waiting for sync to start (step 1 of 7)
    backing up (step 2 of 7)
    preparing to sync (step 3 of 7)
    determining apps to sync (step 4 of 7)
    preparing apps to sync (step 5 of 7)
    importing photos (step 6 of 7)
    waiting for changes to be applied (step 7 of 7)
    syncing apps / copying 1 of 4 (App name) (step 7 of 7)
    canceling sync
    apple icon
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    Other Potential Pertinent Info:
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    OSX v. 10.9
    iPhoto ’11 v. 9.5 (902.7)
    iPhone iOS 7.0.4
    iTunes v. 11.1.3 (8)
    Summary Tab
    Backups (This Computer)
    Options
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    Sync only checked songs and videos
    Photos Tab
    Sync Photos from iPhoto (429 Photos)
    Selected albums, Events, and Faces, and automatically include (no Events)
    Albums – 9 are selected

    You need to download iTunes on your computer. iOS 6 requires the latest version of iTunes which is 10.7.

  • How can I automatically "retract" all windows from my Thunderbolt display back to my MacBook Air when I disconnect the display, esp if the Thunderbolt is the desktop with the white menu bar?

    I am in and out of my office with my MacBook Air.  I would like to set it up so when I plug in my Thunderbolt display in the office, the Thunderbolt display has my desktop, menu bar and the open windows.  If I set the Thunderbolt display to mirror by MacBook Air it adjusts to the lower resolution of the MacBook Air, which is a waste of a cool monitor.  I can set it up as an extended desktop and drag the white menu bar to the Thunderbolt display so it displays my desktop but if I then disconnect my MacBook Air, the menu bar is absent and all the windows that were seen on that display are absent, as if it I was still attached to the larger display.  The only way around this is to go to Thunderbolt display preferences, drag the white menu bar back to the smaller display and manually drag all windows to the smaller display before disconnecting.  Doing this multiple times per day is a real pain.  Is there a way to set my MacBook Air to recognize when it is attached to the Thunderbolt display and automatically my desktop and all open windows to it and then do the same process in reverse when I unhook it?

    It's definitely not supposed to work like that...when you plug the display in, it should just turn on and adjust your displays.  It works like that on my MBP.  Kind of a silly question, but do you have the MagSafe from the display plugged in your MBAir too?  Thats a requirement.  Beyond that, it should "just work."
    Not sure if there is some setting to enable...i haven't seen it.  Call to support?

  • I have deleted iPhoto from my MacBook Air. When I try to reinstall it, itunes tries to charge me. Is there a way to reinstall the old version for free?

    I have deleted iPhoto from my MacBook Air. When I try to reinstall it, itunes tries to charge me. Is there a way to reinstall the old version for free?

    depening on what OS you're running you should be able to reinstall it without charge since it's part of the operating system. if running 10.6.8 or earlier you will need to use the applications install disc if there is one or if you only have one disc you can put it in and do a reinstall of the OS which will put the iphoto back on. if running 10.7 or 10.8 can sign into the app store w/ the same apple id that is associated w/ the mac and it should show in your purchases for you to reinstall it. you may need to click on the accept button if it appears next to the iphoto in your purchase listing.

  • How do I disable the sound effect on my MacBook Air when adjusting the volume

    how do I disable the sound effect on my MacBook Air when adjusting the volume

    Thanks Ralph, that fixed it, I did uncheck that box earlier however I had not restarted the computer. Thanks again.

  • I can't transfer downloaded content from my macbook air to my external hdd, when i try to drag it into the hrd drive it wont go in how do i fix this ?

    i can't transfer downloaded content from my macbook air to my external hdd, when i try to drag it into the hrd drive it wont go in how do i fix this ?

    What format is the external HDD in? If it's NTFS (= proprietary Windows), then OS X can read it but not write.
    Eventually copy all content from the drive to a safe place, the re-format. FAT32 is the format which both Windows and OS X can read and write.

  • Hi, I recently got the iPhone 6, a bit of mucking around with iMessage, over it to be honest. When i message from my macbook air my recipients receive my message from my email. HELP! it never used to do this. its so annoyingly frustrating.

    Hi, I recently got the iPhone 6, a bit of mucking around with iMessage, over it to be honest. When i message from my macbook air my recipients receive my message from my email. HELP! it never used to do this. its so annoyingly frustrating.

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of this exercise is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login. Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. The instructions provided by Apple are as follows:
    Be sure your Mac is shut down.
    Press the power button.
    Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Test while in safe mode. Same problem(s)?
    After testing, reboot as usual (i.e., not in safe mode.)

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