Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Level 1

33 points

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

Best reply

Philip Bendall

Level 1

0 points

Posted on Oct 4, 2008 4:17 PM

From about 2 October my MacBook Air developed the same problems as described above: no sound output and (flash) video playback issues.

Pressing the volume buttons on the keyboard flashes up the level indicator on the screen but it does not change, and also a little "O" with a line through it appears underneath. The Sound Preference panel says "No Input Devices Found" and "No Output Devices Found", and the volume slider is grayed out, set a max, with a grayed Mute box ticked.

Flash video on various sites plays only for a second or two before stopping, although the file continues to load in.

The only software I've installed around the same time this problem first occurred was CoolIris. I have since removed it using its Remove option in one of the menus.

I have also had system crashes when trying to wake from sleep. The machine gives the blue screen and either locks up, or freshly reboots to the Login Screen (with previously logged in users now logged out, ie a restart).

I think, but am not 100% certain, that I updated iTunes after the problem first appeared.

View in context

411 replies

jlyjoe

Level 1

0 points

Dec 17, 2008 11:19 PM in response to Carsten.Roth

Mine has been doing the same thing for the last 2 weeks. I take classes online and it's kinda hard to do that when i have no audio, it's the same thing won't play youtube, and when i try to turn the volume up it's just a circle with a slash thru it, apple needs to do a recall and fix this problem cause obviously it's not just one person....

Dec 20, 2008 5:47 AM in response to Carsten.Roth

I have the same problem. No input or output audio detected. Garage Band Error code. I have a 1st Gen MBA, so I'm gonna use my 1 year warranty to get a new one hopefully!

Doug

Dec 20, 2008 9:21 PM in response to Carsten.Roth

Apple, can you help us?

jbchen01

Level 1

0 points

Dec 20, 2008 9:28 PM in response to jbchen01

Update: I brought it back to Apple and they replaced the sound board and the cable connecting it to the main board, and all is fine now.

It's a hardware issue, just bring it back to Apple and they will fix it.

Dec 27, 2008 7:06 AM in response to Carsten.Roth

Hi,

Same problem here. Warranty is still on, but leaving my computer for week is not an option for me. Maybe I would buy another one and then take this to Apple.

Anyways, I had also a problem since some applications refused to launch without a sound device. I installed Soundflower (is is free, open source) and now I can launch those apps and watch Youtube videos. Without sound, obviously. Hope this helps.

http://www.cycling74.com/products/soundflower

Dec 31, 2008 5:57 AM in response to Carsten.Roth

Same problem as everybody else. Problem started on Dec. 23. Yesterday I took my laptop to the Apple Store in Manhattan. The Genius wasn't surprised at all. They are getting tens of computer with the same issue. They need 5 days to order the parts and 3 days to service the computer. The parts to be replaced are:
Item # Description
922-8379 Audio board
922-8380 Audio board flex cable

Gary16

Level 1

1 points

Jan 1, 2009 7:32 PM in response to seasexandsun

Please post when you get the laptop back and advise if that definitely fixed the problem.

Gary16

Level 1

1 points

Jan 2, 2009 7:30 AM in response to Carsten.Roth

Here's a baffling situation. After weeks of no audio on the MacBook Air, after a normal restart this morning after being in sleep mode, THE SOUND CAME BACK! I did absolutely nothing different this morning from any other morning. No new software was downloaded. We'll see how long it lasts!

Jan 2, 2009 5:03 PM in response to Carsten.Roth

Same issue on my MacBook Air . . . no audio and Flash playback halts after 2-3 seconds.

Into a service center for part replacement I guess . . . but c'mon Apple . . . please post some official instructions.

Gary16

Level 1

1 points

Jan 2, 2009 7:24 PM in response to Ian G Brown

Wondering if this could somehow be a heat related issue. In an earlier post I indicated that the sound mysteriously came back this morning on a restart after several weeks of no audio. After being on all day, the sound started to fade and disappeared tonight. I noticed that the bottom of the Air was very hot. I'm going to try putting a fan under it tomorrow just to see if it makes a difference.

dtcsays

Level 1

0 points

Jan 9, 2009 8:21 AM in response to Carsten.Roth

Hi to all .
from yesterday i 'm having the same problem ..no audio..
i tryed all the ideas this forum had ,but nothing worked...do you think tha the flex cable needs to be replaced ?..any new ideas ?

thx...

B_orn

Level 1

0 points

Jan 11, 2009 12:25 PM in response to Carsten.Roth

Same problem here since yesterday. Will bring it to repair tomorrow.

Jan 13, 2009 12:34 PM in response to B_orn

I have *the same* problem with my IMAC G5
flash videos stop playing, no audio device output, etc, etc.
This is not only with MBA.
And the issue come and go with the time.

I think that this is hardware issue because the temperature is to high and with the time the cable and the audio board stop work.

nbirnes

Level 1

0 points

Jan 13, 2009 12:47 PM in response to cubemacplayer

Sadly, my machine has been into the shop, and back. Replaced a hard drive and a logic board, and the shop guys said it was working. Back home -- nada. No icon, no input, no nothing.

This is just amazing, and not in a good way.

Gary16

Level 1

1 points

Jan 13, 2009 1:01 PM in response to Carsten.Roth

Craziness continues. Our MacBook Air's audio icon came back suddenly about a week ago but by the end of the day it had disappeared again. Since then, the icon will appear but not always with sound. When the icon is showing it will let you play YouTube videos, etc., but not always with sound (when the icon is gone the videos won't play). Based on the other replies I'm reluctant to take it in for repair even though I have an Apple Care policy on it. This has become very frustrating.

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