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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.

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1 Answer 1

Reset to default
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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

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  • 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, 2012 at 12:03
  • had the same problem and that worked for me
    – Pierre
    May 21, 2012 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, 2012 at 16:39

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