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MacBook Air no audio output device found ???????? *please help*

Dear all,

since yesterday my Mac Book Air can not find audio output device anymore, so no sound.

Its actually strange because i was running the Hardware Test (Boot + D and so on) but it does not show any failure or problem.

Could you please help me? Anybody has any idea?

Thank you
Carsten

MacBook Air, Mac OS X (10.5), Macbook AIr

Posted on Oct 2, 2008 4:29 AM

Reply
Question marked as Top-ranking reply

Posted on Oct 15, 2012 4:00 AM

Well the previous fix lasted all of 2 hours. Now I have the sound working again by resetting the PRAM. Here's how;

  1. Shut down your Mac.
  2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

We'll see how long this fix lasts...

411 replies

Nov 7, 2008 4:36 AM in response to Gary16

You're right, the first symptom for me if I'm not listening to sound is Safari starts lagging, beach balling, maybe crashes. When I restart the sound icon is gone. I haven't noticed the other icons disappearing. what seems to fix it every time is to light clean system caches with Main Menu, shut down, safe boot, and restart. Of course this is a lot of trouble.

There is some possibility the sound problem is just a byproduct of whatever is causing the crash.

Nov 10, 2008 6:18 PM in response to Carsten.Roth

I live in Toronto and I just took in my laptop to an Apple store. The guy told me that he has to order a part, and it would take a few days for the part to come in, and after that they want the laptop back for another 2-3 days (that's what they say...) Either way, it turns out the part that is being replaced is the logicboard. The core of the computer. Okay, guy, whatever you say. It's still weird though that everyone is getting a different solution to this problem. I'm very confused, but hopefully it will get sorted out. I'm still glad I can still keep my laptop while they are waiting for the spare part, though.

Nov 23, 2008 1:53 PM in response to Gary16

I own a regular Macbook and this problem happened to me a few weeks ago on election day.

I for one think the entire thing is a software issue, something most likely to do with Flash or an iTunes update. My computer I think has some sort of issue with a faulty sound driver (not sure if that's the correct term for Macs)

Issues:
My computer detects no onboard sound card

Movies are having lagging issues with playback. Flash videos online load, play for 3 seconds, then pause. I need to keep jumping to continue the movie. Quicktime / iTunes movies have significant lagtime when trying to play, stop, or skip a movie (and this has NEVER happened before)

International "No" symbol when trying to adjust the volume from the keyboard, missing volume graphic on the finder bar (though the space for it is still there).

Music through iTunes will not play, period.

I'd assume with this happening to so many people, that by now Apple would have a growing awareness of the problem. Guys at the Apple store try to run a system update, find nothing, then say they want to "hold onto the computer" for a few days. As a student, I can't afford to give up my laptop, even for a few days, at least until the semester is over. So now I'm stuck using a computer with no sound / media playback that (at least otherwise) functions normally.


In theory, I have something that I want to try, to see if it's a hardware or software issue: (you need two Macbooks + a Firewire-Firewire connecting cable.)

1) Boot your Macbook in Firewire target disk mode - Hold "T"at startup - this allows you to plug your computer into another computer as a recognizable "hard drive"

2) Connect the two computers (yours in disk mode, the other off) together with a Firewire-Firewire cable, and

3) Boot the other Macbook and hold Option-Command-Shift-Delete, this should Bypass the primary startup volume and seek a different startup volume (such as a CD or external disk)

4) Select your original, now connected, target hard drive to boot from.

In theory, I should be able to run my software off of the other computer's hardware. If there is sound on the other computer, it's a hardware issue on your computer. If there's no sound still, it's a software issue, and it's a bigger problem for you.

At some point i'll try it when I get my hands on a connector cable. If anyone is willing to try it before hand, let me know how it goes.

Nov 25, 2008 10:26 PM in response to Carsten.Roth

I just got the same audio problem. I've tried everything suggested, such as reset PRAM, clear audio cache, etc. Nothing seems to help.

I read somewhere that it may be the audio cable connecting the speaker to the logic board that is defective.

Did anyone have a fix for this sound problem, or do I have to take my MacBook Air to the Apple store to fix it?

Nov 25, 2008 10:40 PM in response to jbchen01

I would like to re-state one element of this mystery that I still think might be useful -- the connection to Apple TV. My remote always affects the Air as well as the TV, even when the Air is put to sleep and across the room. I can see the flashing even with the lid closed. Of course I've tried and tried to marry the remote to the TV, with no luck.

The sound icon still appears on the laptop screen if it's open, and basically there is havoc on the Air that I have to cure by using the escape key several times. This doesn't seem right.

I do plan on taking the machine in for service as soon as I can, and will report what they tell me, but losing the sound and all video playback just *****.

Nov 29, 2008 3:36 PM in response to Carsten.Roth

Apple gave me a new MBA which fixed my problem. Details follow...

In October I started having the no output device found message and could fix by cleaning system caches. This was a pain and would fix the problem briefly but it returned. Finally about two weeks ago I couldn't make the no output devices message go away at all and had no sound permanently.

I took my 1.6 80GB MBA to the local apple store and the genius booted it from the external drive he keeps at the bar and the MBA still had no sound. That meant it was clearly hardware, not software. They kept if for a little over a week, and when I went back they had me a new MBA just like I had given them and had even restored my user data to the new MBA.

I have no problem now! It's a nice machine. Looks like the AppleCare warranty was worth the money.

Ralph

Nov 29, 2008 7:38 PM in response to Carsten.Roth

Same thing for me. Just happened today. I have a MacBook Air 1.6GHz 80GB HD.

"Up-Sound" and "Down-Sound" keys produces an image with a "not-working" symbol.

"System Preferences >> Sound" shows no sound output or input devices.

Running "GarageBand" shows an error:
Selected Driver not found.
(-10202)

Looks like my sound hardware disappeared.

Didn't see a good solution on this thread.

Need help.

Dec 2, 2008 1:34 PM in response to Ralph Daily

I used my Mac mini as the Remote Disc and I booted my MBA from the install disc, it didn't give me sound too. However, I think I fixed it by putting the computer to sleep from the Apple menu (instead of closing the MBA lid) and then waked it up and then restarted it.

It works quite good if I don't have VMWare running and just running Safari and Adium. Maybe it is not related to VMWare and only related to memory issues.

Dec 2, 2008 11:50 PM in response to dlau

I can confirm that it is not related to VMWare or Adium. My MBA lost sound suddenly when I was just using Safari after a reboot. No program was run after reboot except Safari. The problem probably coming from Safari 3.2.1 since I started experiencing this sound problem only a couple of days ago.

Dec 3, 2008 5:05 PM in response to Carsten.Roth

I have the same problem with my new MacBook. I was using it and suddenly i noticed that sound dissapeared. I tried restarting the system, reinstalling everything but it stills the same: it doesn't recognize anything in relation with sound, no output/input devices, no sound effects, and it's marked the mute option and you can't change it... By the way, the sound icon dissapeared from the menu bar leaving a blank space there. I also tried a trick i found: starting up the computer and then pressing command option+PR until the sound starts... It works while the computer is on but when I start it again the problem stills there...
I read about this problem with some MacBook Air and other ones but I don't know how to solve it. If anyone had this problem and knows how to fix it, please, help me!
Thanks!

MacBook Air no audio output device found ???????? *please help*

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