Solution 3: PulseAudio Volume Control program. Even if the second solution did not work, try changing the configuration with PulseAudio Volume Control. Step 1. Open a terminal and use the following command to install PulseAudio Volume Control: sudo apt-get install pavucontrol Step 2. Open PulseAudio Volume Control. Step 3 What this really refers to is gnome-volume-control-applet which is what controls the volume in the panel/indicator applet. In Ubuntu 10.04 it is just the applet mentioned above, run that from the command line and it will start. I lost mine when I removed pulseaudio trying to fix audio issues with Flash and Opera.