Mac OS X Lion: Sound problem after unplugging my headset/headphones.

Tracy Rasmussen wrote:

What works for me is the fix suggested to me when I first posted this, and used it again today and it worked again. I have only had to do it a few times in the last several months.

I am using 10.5.8 though.

"Run Activity Monitor and find the process called "coreaudiod", select it and press Quit Process."

Then restart.

This works for me too to avoid restart. I'm using Lion 10.7.3. Thanks!

For those who the killing of coreaudio process did not work, how about killing the process called 'coreserviced' on Activity Monitor?

I'm on Early 2011 Macbook Pro 15 with OS X 10.7.2. Force quitting the 'coreaudiod' did not work for me, but the killing of the 'coreserviced' somehow did. Just in case this worked for some other people too.

I should probably add that killing the latter, although having fixed the sound, also crushed Finder for some reason.

Thanks marcusleemitchell, and the next few users here. We use Logmein extensively and on a 2nd user, not where it was originally installed, the sound had stopped, and for us, it was Preferences > Sound > Output and make sure the 'Internal Speakers' was selected vs LogmeinSoundDriver ... Thanks forum!

I hope this gets understood and fixed by Logmein, Inc., a very fine product, which many of us love!

I went to System Preferences->Sound and on Output tab checked Mute checkbox then unplugged my headphones. After that Mute checkbox strangely became unchecked and sound came out from speaker. I hope that will help.

This really does work people!!! Just unplug and plug you head phones in and out until you hear the plop noise. You can pause in between pulling it out and turning it up and down for a quick sec to see if it still works. But other than that this really does work!!! THANKS!!!

NO MORE AFK!!!! 😀

Thank you everyone, I just did the upodate and my sound went to nothing. No output in head phones and very quiet output on itunes.

I followed the above advice for a few people, the download app to fix did not work.

I fixed it by going to my finder, searched Audio MIDI setup, tried a few settings and for me the 2ch-32bit float worked like a charm!!!

So happy I can listed to my headphones again!

Peace, love and music!!

Best luck

So my sound control was laggy. I don't like laggy. I did the "sudo killall coreaudiod" in the terminal. That worked, woot. I only know how to use computers in order to suit my needs, nothing beyond that. Can anyone tell me what is actually happening? and why this happens? Is there something bogging down my machine? Is there something I need to do to increase the performance of my machine? I run Sophos anti-virus software and keep up on all updates... but I feel like there is more that I should be doing to keep my Mac firing on all cylinders, so to speak...

System update 10.7.1 is out. It fixes [some] audio problems. Check your updates, test.

this
sudo killall coreaudiod
worked for me...

Killing the coreaudiod process worked great for me too. I am on 10.7.3 on a 15" Early 2011 MacBook Pro.

Thanks.

Doing the 'sudo killall coreaudiod'

...fixed the issue for me! Thanks. Lion sure is buggy.

I LOST ALL AUDEO OUT - WENT TO midi AUDIO OPTION AND FOUND THAT ALL HAD BEEN SENT TO "MUTE" UNCHECKED "MUTE" AND ALL IS FINE - NO IDEA HOW THEY WERE MUTED

sudo killall coreaudiod worked for me, too. Thanks!

So happy, problem solved. Apparently it is the old power pc progs lurking on our systems that is causing the problem. Remove them and the sound comes back. It works. Instruction can be found here: http://osxdaily.com/2011/07/15/how-to-check-if-applications-are-incompatible-wit h-mac-os-x-lion/

Deep joy!

The app should totally work for Leopard. There are two ways to test if it will work. When you have the problem...

Either:

Run Activity Monitor and find the process called "coreaudiod", select it and press Quit Process.

or

Run Terminal and do: "sudo killall coreaudiod" (without the quotes)

Both methods will ask for your admin password. After running either of these it might take a few seconds for audio to start working. If either of these temporarily fixes your problem, then the app will probably work for you. The app just does the exact same thing. It isn't really lion-specific but I never had this problem on snow leopard or leopard.

-kai