I have the same problem in 12.04 (lubuntu). aumix is important since I am using the i3 window manager where I have to use a command-line tool or a GUI tool independent of the desktop to control multimedia settings. I am using alsamixer but it does not seem to control all my settings correctly - I have to drop back to lxde to unmute sound or to get my microphone working which is not the desired outcome for me.
I have the same problem in 12.04 (lubuntu). aumix is important since I am using the i3 window manager where I have to use a command-line tool or a GUI tool independent of the desktop to control multimedia settings. I am using alsamixer but it does not seem to control all my settings correctly - I have to drop back to lxde to unmute sound or to get my microphone working which is not the desired outcome for me.