Q: Volume control problem in Lion

Great! it works for me.

Here :

Replaced the stock HDD (250GB Hitachi) with a Samsung 256 GB PM800 SSD a year ago. Did not have any problem yet - until installing Lion!

Hi, I've had the same problem.

I changed volume level at the same time I disconnected the headphones..

my solution :

terminal:

sudo -i

"enter your password"

as root :

launchctl stop com.apple.audio.coreaudiod

launchctl start com.apple.audio.coreaudiod

notice, if any programs are open and may have a hook to the sound driver, it may crash (my garagband did)

the sound works perfectly afterwards.

Installed 10.7.2 Dev Update 2 Days ago. Everything fine until now. Hope the problem is solved! (at least in my case) I will report, if the problem appears again.

Had Lion installed for a couple weeks, never saw this issue.  Put in an SSD yesterday, and saw the volume controle issue today. The launchctl stop and start cleared the problem, at least temporarily.

This worked for me.  Thanks!

I have a Macbook Pro 17" (end 2009), run lion for some weeks now and never noticed the audio issue, because audio seemed to work. Until I tried to record my jazz band yesterday live, connecting a Saffire Pro 40 and had to change the audio input in Booemrecorder whose audioprefs showed nothing to choose. The system prefs panel's audio input and output showed "no system audio" too. Fifteen minutes before we had to start I tried all suggestions made here (deleting prefs, repairing permissions, editing system plist file), with no effect.

Today I read this topic to the end and bjarnehr's post was the resolution for me.

Thank you!

I'm am really screwed. Pls help and even call me by phone.

I tried to edit the file /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist

but I think i messed up at the file new has another extension like /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist.txt

I don't know how to change it. I only use graphic interfaces and never terminal.

Hence the file is missing I can't start my computer anymore. I stalls at the white screen with the grey logo and the timer below.

I tried to make a safe reboot with no luck (cmd + shift) at startup.

What do I do?

I screwed up and have a suspission that I added and extra extension to the file like this

/System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist.txt.

Result my computer can't boot anymore and stalls at the white screen with the grey logo.

Please help - what do I do.

svende.com

I think safe mode is just the shift key

You are right Brian_in_Rl

That's what I tried and the PRAM "cmd + alt + r + p"

and still no luck

you have to use terminal or PlistEdit pro, because the file your editing is at the root and you need root permissions  thats what I understand  anyway  I used plisteditpro and it worked as described

send me a CELL phone number or SKYPE number/name  to brianmackey@fineartdigital.net

Hi,   you can download my plist file here :

http://bjarnehr.com/4svende.plist