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

I can confirm that replacing the audio cable has worked for me. Huge relief ;-))

My symptoms (1st gen 1.80GHz 13" MacBook Air) were greyed out loudspeaker icon in the menu bar, no start up chime, no sound at all, no audio hardware showing in System Preferences. I followed the ifixit.com walk-thru, but reseating the cable didn't solve the problem. Replacing the old cable with a used cable bought from eBay.co.uk for GBP30 approx does seem to have worked though.

Fantastic news, as it makes the MBA usable again!!!

Problem solved/fixed!!!

ALL you need to do is just to reinstall the audio cable...

*Symptoms I experienced were the same as above: some videos (of particular format?) plays for up to 3 seconds then pause; audio output not detected, 35mm headphone jack produces no sound either.

And ALL I did was just a push on the audio cable...

*I almost went removing the internal harddrive and start computer to checkout whether it's corruption of OSX (because the hardrive is dying soon too (crashing and requiring 1-hr restoration via Time Machine about twice a month, classic issue of mba too i think)

<Edited by Host>

It was fixed but the problem come again.

If it is an audio cable problem in the Macbook Air as frequent as we can check here, why does not apple fix it by themselves?

It is clear that it is not neither a customer problem for bad use nor a isolated problem. APPLE should react and SOLVE IT.

I bought apple because of the final quality but I think I will come back to windows.... cheaper and they assume their mistakes...

I'm having the same issues.  I was given a new macbook air for a birthday gift recently.  First it started out as not being able to unmute itself, then after restarting it several times it just randomly cuts out.  I'll be taking it in soon and if this is corrected for the long term I will be requesting a new one for the inconvience.  Not to mention the amount of money that was spent for a "quailty" machine that can perform simple tasks.

Once you have tried all of the basic things (restart, reset the pram, reset the smc) I had to remove the following preference file.

Delete the BezelServices preferences file – this is a mysteriously magical file. It controls those on-screen images that you see when you change the volume, eject DVDs/CDs, change brightness, etc.  But it also seems to be the source of all sorts of odd issues that you can never figure out, and tends to get corrupted. But the fix is easy and relatively safe. Go this preference file (location shown below) and just delete it and reboot. Location &amp; filename:

~Library/Preferences/com.apple.BezelServices.plist

Good luck. This worked on my 13 inch Mac book air 2010 running lion.

My problem seems similar to everyone else's. Just want to confirm, if anyone can help me.

No sound, stopped suddenly, overnight. I woke up, I woke up my MBAir, and no sound. The sound control panel has no input or output options, the earphones do not work, no startup sound, no sound from videos. I ran the hardware test on 'd' startup, said this about audio:

"Intel High Definition Audio:

  Audio ID:          0"

I have tried all of the software fixing advice here and elsewhere, started and restarted my Air many times after deleting and doing various things to files and whatever.

So, the thing to do now is install a new cable? That is it? Bit of a problem as I am travelling, but I will have to do that if I need to do that.

Thanks.

Ian,

Different people seem to have "resolved" the problem in different ways, and it is difficult (for me) to understand why - unless the underlying problems are slightly different. However, my problems were precisely the same aas yours. I was not able to sort things out through software / reboots etc, nor did removing the audio cable and re-seating the connectors. But installing a new cable (approx GBP30 on eBay for a "used but functioning" cable does appear to have resolved the problem. (See my earlier post APR-17 above). Using the iFixIt walk through it took ~30 minutes, and only required very basic tools. Good Luck, and I hope you get your MBA working again!

Julian,

Thanks for that. Travelling in western China atm, but the people at my next guest house assure me that they know of an Apple service centre near their establishment. Here's hoping!

Ian

Hey guys,

For me the problem was that LogMeIn updated and somehow set the logmein drivers as the standard for the audio output and the microphone input, so i just changed it back and that worked.

System Preferences >> Sound >> Output and Input

The problem for most of us is all the preferences sound have just greyed and disappeared.... I am trying not to take to an Apple centre but I am sure it is going to be the only solution.

I am quite unhappy with the Apple answer to a problem that is not from the customer....

¿is this apple quality?

I've been wrestling with the disappearing audio functionality in my MacBook Air ( original), an have tried everything in this thread. Resetting the SMC worked, as did plugging in earphones and rebooting - but both worked for a while before the same problem recurred.

But what I noticed is that the problem only recurred when I loaded Youtube to watch a video. Suspecting that Flash might be part of the problem, I have removed all traces of Flash from my system, and installed Flashblock extension in Firefox to ensure no Flash is loaded on browser pages. Immediately I emptied the Trash containing flash plugin and restarted, my sound returned.

It worth a try: won't fix an audio cable hardware problem, but if that cable isn't the cause, ditching Flash might work for you too!

David Young

I discovered a cure. Put your mba in a box,  powered off, for a 12 hour trip on a bumpy southern Chinese road. After that my sound problem was cured. 2 weeks later, still ok. Let sleeping dogs lie.

Hi Riaz

I have experienced the same issue and came to the conclusion that my audio drivers have been somehow replaced by the Logmein ones.

You said you were able to changed them back and it worked. I think I should try the same but I can't figure out how.

Can you tell me how you did it?

Thanks!

ACUCITA

hi! Well that happened to me today and what i did was i plugged in my earphones halfway then sound came on. i am not really sure if this is the same problem but today randomly, the sound just didnt come on. i checked if the volume was on mute and it wasnt. the earphone trick works. i have done it alot of times. but again i am not sure this is the same problem

This happened to me tonight. The solution for me was to uninstall soundflower - ran their uninstall script then using Path Finder I found anything with soundflower and deleted them. Rebooted and had my audio back. 2011 MBA 11".