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

hey guys i may have figured it out, i had the same problem, but i resolved it, okay first grab an audio cable, go to sound under your system pref then click output. if there is no output at all there thats okay well anyways then plug in your audio cable,adjust the sound a little bit if it shows u have sound, good cuz you have the audio cable in, well then you pull it out, adjust volume a little bit and just keep doing that untill you hear the sound adjustment ding and there you go it is fixed then magicly it will show up in your mac that you have sound from your internal speakers, if that didnt fixit then in the sound settings click on use audi port for: then click output when u have headphones in if that didnt work you should take it in to an IT group at best buy or better yet take it to an apple retail store they may be able to help/do it for you.🙂

Also my MBA (mid 2012) stopped making sound "No Output Devices Found". It happened after I applied the latest upgrade to 10.8.4. I'm sure it's a software problem because I still have startup chimes, and I also have sound when I boot from a Carbon Copy Clone of my previous system.

I tried about anything I could find in this thread and elsewhere:

- PRAM reset

- SMC reset

- Fix Permissions

- Fix harddrive

- Re-apply updates (Combo)

- Delete the bezel preferences

I also noticed that when I try to play a YouTube movie, it freezes after about 10 to 15 seconds.

It's quite frustrating. Of course I'm just out of warranty as well.

I think there must be some kind of software conflict, but I don't know how to find out.

Anyone knows something else I could try?

It´s the same to me, but on a Mac Pro !

It was definetly a not perfectly installed 10.8.4. The apple support told me to start the computer wait shortly and hold cmd+R. then there was point reinstalling. I hope it was named like that, it was 2 days ago. but it was quite selftelling. I did that and everything works fine as usuapple 😀. Hope this helps you.

Perheps important to metion: before that I already installed the Combo Update AND afterwards the whole 10.8.4 over the App store again. This didn´t help. It has to be in the RECOVERY mode, as mentioned above !

Good luck !

Yes, unlikely as it semed, this solved this problem on a 2007 (I bought it because they last a long time) imac. I cannot be absolutely certain of the trigger which caused the loss of sound output but the problem certainly arose at about the time I upgraded the operating system to Mountain Lion. Internal speakers continued to work ok.

I used headphones and for what is worth I plugged and unplugged them a couple of times and then (this seemed to be the important bit) adjusted the volume in the system preferences and the sound returned after what has been several weeks without use of a Bose speaker system.

Thankyou rynelandt.

Joe Holt solution solved my audio problem😎. Probably when I installed a new battery I moved the audio cable connectors.

Many thanks for your perfect explanation and pictures.

🙂

Fixed!

I first tried every solution in this thread, with no success. I reset the PRAM, fixed file permissions (disk utility), rebooted multiple times, plugged in USB-headset, plugged in minijack, and even tried to install the latest combo update (which for some reason fails). The sound device was missing also when i booted into safe mode.

However, I did manage to fix the problem by booting into recovery mode (hold cmd+r while booting), and then simply reinstalling OS X. This doesn't erase or change any user content, so everything will be just as before when the installation is finished. (But as always - do have a backup just in case!) It just reinstalls the system files. And, the sound device problem was fixed. Yay!

Yes! 1000 times yes! Apple told me I was going to need a new logic board but that sounded like a heap. If you have the problem with the greyed out volume and no inputs, don't pay Apple a dime until you try the trick in this video. Just move the audio cable from under the battery to the top of the battery. Pure effin magic.

Exactly the same to me. No sound, no source. 1st gen MBA, 80 GB.

I tried everything. The SMC. Reinstallation of SL, plugging and unplugging headphones, deleting plist, repair permissions, toying with settings, zap PRAM. Nada. Nothing.

I suspect it's the cable, probably because of overheating placement under the battery, poor design with folding ribbon cable.

Then the hinge broke... Apple is no longer standing behind that problem.

I've stood behind Apple since day one. I have a bushel basket of their products.

We are all getting rotten Apples!!!!

I had the same problem no sound I tried resetting holding command option and P,R it would work for an hour then be gone again.

Then I tried holding command and D down while I restarted my computer the whole way through the restart and shazam it worked and I still have the sound for a full day now.

Fingers Crossed

This fixed my problem too! Thank you. I just went to System Preferences > Sound, clicked "output," and selected "headphones" (while wearing my headphones.

Headphones in and out and in and out. Do this until you see in system Preferences / Sound that Digital Output changes to Internal Speakers.

Such an old problem, but stil existing in the latest OS X releases.

(And I hate the situation when I really need my internal speakers and there is no headphones around me to be found)

Civix74 was right. I spent 2 hours reinstall OS X last night. After it was done, my mba restarted twice still no speaker. I gave up, went to bed. This morning when I turned on my mba the magical chime came with the boot screen! I turned it off during lunch, and turned it on again. Again the heavenly chime came out from the speaker. It's fixed! Halleluya!

I'm having the same problem, tried the PRAM reset but that just seems to be a temporary fix, so i ended up taking it to the genius bar and getting the logic board replaced. Then a month later to the date, it started happening again. So now i'm at a loss of what to do.

Plug some normal headphones in and out again, repeat until you see the 'Internal Speakers' entry showing up again in 'System Preferences / Output'

There is no other fix available.