Sound output reverting to internal speakers after restart

Didn't do it for me ... first of all there is no "Audio" folder in the directory "Library\Preferences". There is an "Audio" folder in the Library file. I deleted that folder and never got a request for my password at the deletion; and the same thing happened on the re-start.

Is it possible that I need to go into the "Users" library folder?

Didn't do it for me ...

Please delete all the cache folders and try again.

Buzz, I don't even have either of those files on my boot drive. Nor do I have an audio folder in my library preferences folder.

O.K. I'm sorry that I didn't explain the details clearly so lets try again.

First delete the Caches by following these steps ...

1) Open Finder & under the Devices column on the left.
2) Click on your boot up hard drive to display the folders located there.
3) Click on the Library folder icon.
4) Click on the Caches folder icon.
5) Click on the Action button from the tool bar then click Move to Trash.
6) Repeat step 2.
7) Click on the System folder icon.
8) Repeat steps 3, 4 & 5.
9) Repeat step 2.
10) Click on the Users folder icon.
11) Click on your user name.
12) Repeat steps 3, 4 & 5.

And now the Audio folder ...

13) Repeat steps 2 & 3.
14) Scroll down to the Preferences Folder & click on it.
15) Click on the Audio folder.
16) Repeat step 5.
17) Reboot.

Let me know how it goes.

Buzz

Buzz,

Thanks for the detailed explanation, however I have no audio folder inside my preferences folder. Any advice?

Thanks for the detailed explanation, however I have no audio folder inside my preferences folder. Any advice?

Hmm, that's odd but how did you install Snow Leopard? As an update or as a clean install?

The reason why I'm asking this is because there wasn't a '/Library/Preferences/Audio folder' with Leopard. Snow Leopard added this Audio folder & moved these 2 plist's there.

Are these 2 plist's located in the '/Library/Preferences folder' ?

If this Audio folder is missing then you may need to try some else.

Let me know ...

Buzz

Okay ... now we seem to be getting somewhere, or maybe not.

I first installed SL on my own as an upgrade. I had real terrible issues and it had to go to the Apple Store where they did an erase and install.

In addition to the missing folder, those two files are no where to be found on my computer at all.

Wayne

Okay ... now we seem to be getting somewhere, or maybe not.

O.K. I asume that you have used Disk Utility to check & repair the permissions so open System Preferences & setup the audio stuff again. Then reboot to see if that fixed the sound and added that Audio folder.

I'm not sure that I am following you. I have been opening system preferences and setting up the audio stuff over and over again in the past couple weeks since I got my computer back from the Apple Store. Nothing changes.

Did you delete those cached files?

Yes,

I did everything else you suggested and still no change.

Thank you for that info because it clears up though's I had.

Hmm, I think I know what the problem is now but I need to know one more thing first.

Open 'Activity Monitor' and from the tool bar, click on & change "My Process' to 'All Processes, Hierarchically'. Now look for a 'Process' named 'coraudiod' and let me know if it's there. I believe that it's not loading and the reason why you don't have any sounds.

Let me know and we'll go from there.

Ik had geen apple ID....maar nu wel....dit had ik nodig om te laten weten dat Buzz Lightyear mijn audio probleem heeft opgelost.

Ik had dus deze bugg...en ik heb je stappe gevolgt en het heeft gewerkt en de bugg is gone !!!!

Het ziet er ook naar uit dat de rest van mijn programma's naar behoren zijn blijven werken

Ben er blij mee....ik heb al die files nog voor de zekerheid op mn desktop staan.

Ik heb die twee files ook uit die map gehaald....maar moet ik die nu weer terug zetten??

De rest kan ik toch weg donderren?


First, drag these 2 files to your desktop ...

(your boot up drive)/Library/Preferences/Audio/com.apple.audio.DeviceSettings.plist
(your boot up drive)/Library/Preferences/Audio/com.apple.audio.SystemSettings.plist

Then delete the caches ...

(your boot up drive)/System//Library/Caches
(your boot up drive)/Library/Caches
(your boot up drive)/Users/(your user name)/Library/Caches

Now Reboot, Delete the Trash & Redo Audio 'Preferences'.

cheers

rogier righART

Yeah, Buzz' solution did work for me! The only addition I had to make was changing the number of audio channels from 1 to 2 with the help of Audio_Midi-Setup.

Thanks for the help!