Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I just upgraded to 12.04 I have sound. Using headphones also mutes the speaks. So far so good.

I can't use my shortcuts to control volume anymore. It's usually Fn + Left Arrow and Fn + Right Arrow.

In top right corner, the volume bar looks like the volume is all down. Clicking on it, I can go to Sound Settings... and it seems I can't use that application. It opens, but I can't click on anything and basically there is nothing to click on. It's greyed out with no information.

What do I do? I can control volume through Gnome Alsamixer... or whatever player I play music from (so it seems. I tried Rythmbox... and youtube). But it still seems the sound application doesn't work.

I've got a lenovo U350.

share|improve this question
I had this problem. A reboot worked for me. – harisibrahimkv May 4 '12 at 9:08
Mh, a reboot doesn't work for me, sadly :/ ...I don't even know where to look for the problem. Any ideas? – Christina May 4 '12 at 10:36

Try killing and restarting pulseaudio, do some /tmp cleaning too. Open terminal and type switch to root using "sudo su" and then do the following:

killall pulseaudio -KILL

rm -rf /tmp/pulse-*

Exit root by pressing CTRL+D and restart pulseaudio by typing: pulseaudio -D

share|improve this answer
I don't have pulseaudio installed, it seems. but the weirdest thing happened. I turned on my laptop and the sound icon in the top bar was there, still I couldn't use my hotkeys. BUT after a restart of the system it didn't work again. I've got no idea what's up. – Christina May 11 '12 at 12:03
had the same problem and that worked for me – Piero May 21 '12 at 16:10
NEW INFORMATION!!! Help! I still have sound issues, but I realise now that the big issue is that I DON'T have any sound when my laptop is running on battery!!!! Running "gstreamer properties" in the terminal I get to choose default output device. When plugged in a socket I get to choose between HDMI 0 and Conexant Analog. Conexant Analog gives me sound. When on battery I can only choose HDMI 0 (= no sound). Any ideas what to do? – Christina Jul 16 '12 at 16:39

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.