Lost audio, no sound, icon greyed out

I've got a 2010 MacAir that was upgraded to Lion about 6 months ago,  all was working well, except in the last week the Audio went out, The Sound Icon is greyed out and the Volume slider doesn't move. When I go to System Preferences/Sound the mute box is checked. Any input on how to repair? Thanks

Just to finish this (lame) thread:
Took the computer to the Genius Bar.  Needed a logic bar replacement.  Fortunately, have Apple Care, or whatever it's called.

Similar Messages

  • HT2341 why does my sound icon grey out and doesn't allow me to make changes on the system settings

    why does my sound icon grey out and doesn't allow me to make changes on the system settings

    When you go to System Preferences > Sound what does it say for Output? Have you had headphones plugged in? Sometimes the headphone jack gets stuck thinking it has something plugged in when there isn't anaything there. SMC also has something to do with Sound:
    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    The 5 second timing is important to a successful reset.

  • Sound Icon Greyed Out - Midi AutoAggDevice auto-created

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    I have gone into the MIDI preferences (Audio Midi Setup) and there are many extra devices, but when I try and remove them, they come right back after a restart. I wouldn't mind if it wasn't affecting my default output, but it is getting really frustrating.
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    Resetting PRAM may help.
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  • Sound icon greyed out

    Hello - this problem just started for me a couple days ago.  I cannot tell what action causes it, but now restarting and resetting my PRAM settings does not fix it.  I also tried a fix I read where I created a login item that resets the audio.  I ALSO tried plugging in headphones.  None of these are fixing the problem.  I am running OSX Lion 10.7.4.  Please help!

    I do live in the US - I just havent been to an Apple store in a LONG time, ha ha.
    I thought this problem had fixed itself, as it hadn't happened in a couple of days - but now has happened again. >:(
    Any other ideas from anyone?  I don't know how soon I will be able to go to an actual Apple store...
    Edit: Now that I think about it, this seems to happen after I watch something with Quiktime.  For some reason all my videos began trying to open with Mocha, which didn't work.  When I would tell them to open with Quicktime, they would play fine, but after I was done would have a grey sound icon.  I was using QT last night for the first time since this post and this morning is the first time it has happened again...

  • My repaired water damaged macbook pro has no audio with the icon greyed out. i tried all the suggestions but nothing seems to work. however, on my external clone, the output does work. any ideas about this?

    I tried reseting the pram, reinstalling the software, plugging the headphone jack in and out, deleting playlist but nothing works. on the external clone, the output works with noise but still no input device.
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    If you just had the system repaired for water damage what did they replace? If it was the Logic board then all parts should work and if they don't, like the sound, then they didn't fix it correctly and you should take it back to them for a proper fix.

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    Any ideas why the "send to STP audio file project" is greyed out? perhaps I have forgotten a preference setting somewhere?
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    Hey, Dave. That can happen if you captured your files with two audio tracks instead of a single stereo track. The two channels will show up on two tracks, but they're not actually stereo in the quicktime file.
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    http://discussions.apple.com/message.jspa?messageID=1456638
    http://discussions.apple.com/thread.jspa?threadID=259929

  • Camera Icon greyed out in PS forums!

    Camera Icon greyed out in PS forums!
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    John Joslin wrote:
    Camera Icon greyed out in PS forums!
    What gives?
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  • CC-icon greyed out, can't download or update any programs

    CC-icon greyed out, can't download or update any programs

    Re: Creative Cloud icon grayed out in menu bar.
    Please follow the mentioned steps:
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    2. Enable root account: http://support.apple.com/kb/ht1528 and log on to root
    3. Disable any security software if installed on Mac
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    Go to https://creative.adobe.com/products/creative-cloud
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    http://forums.adobe.com/message/5466160
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    Regards
    Rajshree

  • Facetime icon greyed out in contact list

    I am runing 10.10.1 for my iMac and have the latest software on my Iphone 6.  The contact I would like to use FaceTime is in China and uses a iPhone 5.  My computer contact list shows the Facetime icon greyed out.  The same contact in my iphone has no indication of a Facetime option.  I have checked my settings for both messages and FaceTime.  I have used messages to communicate with this person.
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    I would guess that something on your contact's end is the issue - can this person make Facetime calls to anyone?
    ~Lyssa

  • TS1574 Hi, I dont have sound on my imac. The options in sound are greyed out and there is nothing in the output list

    itunes and you tube are not working.  There is no sound. When I am in itunes and play a song, the song does not start.
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    Go step by step and test.
    1. System Preference > Sound > Output > Internal Speakers
        Highlight  Internal Speakers.
        Make sure that Mute is not enabled.
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        Choose the method for:
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  • Audio and Video call greyed out

    Hi. I m using ichat (lion OS) in my mac mini. My problem is cant video call or even call anyone, but people can video call me. When other's call me, both video and audio works fine. But in my ichat all i see is greyed out audio or video call. Please help..

    HI,
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     MacBookPro 2Gb (Snow Leopard 10.6.8)
     Mac OS X (10.6.8),
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  • Speakers suddenly stop working. Icon greyed out?!

    Hi all.
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    I press the volume up, down and mute buttons and it does nothing. The 'overlay' comes onto the screen showing like it has max volume, but with a circle/cross underneath (imagine a no smoking sign).
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    the same thing happened to me. I closed my laptop to take it upstairs to work some more and when I opened back up the sound icon was greyed out. I tried plugging in speakers and a headset and they work fine. I think that it is probably the logic board but I read here : http://discussions.info.apple.com/thread.jspa?threadID=2244270 that it could just be the internal switch. I have a late 2008 model and the post seemed to mention models of that date. Let me know if you figure this out.

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    Hi,
    Bought a new iMac today. OS X Yosemite  10.10.2
    I migrated my data from my old iMac, no problems.
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    When I use the speaker up or down buttons on the keyboard, a speaker icon appears but nothing happens
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    You can return a new Mac within 14 days of purchase.
    Return it and get another one.
    A new Mac is in warranty for 1 year from the date of purchase.
    A new Mac comes with 90 days of free tech support from AppleCare.
    AppleCare: 1-800-275-2273
    Call AppleCare.
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