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

I have the same problem, no sound, no sound icon, slow or non-working videos (youtube).

This seems to have occurred after iTunes 8 install.

Does anyone have the fix?

Stupid Apple. Their service simply *****. And I have the AppleCare.

I am having the exact same problems with videos along with my sound. Because they're all happenning at the same time do you think maybe it was a problem with an apple update? ... just a thought, im not great with comps

This continues to be a mystery. Audio on our Air has been on and off for a couple weeks now. The past 3 days there was no audio despite restarts, etc. This morning the computer was rebooted and -- tada -- the sound came back. No idea how long it will stay or why it came back this time.

Still no answer or solution,Does apple even care about the consumer? This problem is really getting frustrating i think it is because of the Update 😟

Hello all,

Okay this is what I have got so far; no sound, no device (for sound), and videos stop playing.

I have a support plan. Apple had me reset the machine, and on the first time around I got sound. Then reboot again, and nothing.

I installed and ran OnyX, didn't help at all. I did a couple of other suggestions that other commenters wrote, no avail.

I did notice that when I went to Apples page, that I could play all of their video content, but no sound.

This only happened to me after I installed an update from Apple.

I have an appointment at the Genius bar (Apple support), and I will let you know what they did.

Good luck.

Yes, please let us know what the Genius Bar says/does. I will get sound every so often on a restart and then it will go away again either by itself or on the next restart. Doesn't seem to be any pattern.

I have this problem also. Safe boot and restart seems to cure it for a few hours then it comes back. This morning I was streaming Pandora on my MBA for 30 minutes and then all of a sudden no sound.

This has been going on since October and really is a pain.

We discovered something that may be coincidental or not. As mentioned earlier, every so often on a restart the sound will come back. After a while, the Safari browser will crash and the Air will have to be restarted at which point the sound is gone again. Coincidence? Also,earlier today, all of the icons at the top disappeared (not just the sound icon but also the battery indicator, the signal strength indicator, the time, etc.) but unlike the sound icon disappearing the other functions continued to operate (could still search the web even though there was no signal strength indicator). Coincidence? After a restart the icons came back -- but not the sound or the sound icon.

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.

Same problem here. I went to see the guys at the Genius Bar at the local Applestore. He says it is hardware and wants my computer for an entire week. Not really helpful. After reading this discussion I guess I am better of waiting until someone really finds a solution (apparently exchanging sound cards only is a temporary fix...).

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.

Has there been any progress on this problem? I have the same issues, and would like to know if there's an easy solution before bringing it to an Apple Store.

I've been having this problem too! And the following got my sound back!

Delete the following file:

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

Restart your computer.

You're all set! Hope it works for you!

I tried it on my MacBook Air but unfortunately the audio did not come back so I guess you were lucky but thanks for the tip.

My 2008 MacAir sound just went out also and Apple doesnt seem to care or know what the problem is...
Can anyone help? why cant Apple fix this problem. People need to get the word out that these machines are flawed!

Can anyone help?