Comment 9 for bug 299642

Dr. Suave, could you confirm which mute button is causing the problem?

I have found a problem with the audio recording toggle button (The microphone with the red X as shown in the attached screenshot) which causes it to always be disabled when starting up. This button is only shown for inputs in the "Recording" tab.

The mute button (the icon to the left of the microphone button) does not seem to have any effect and is always set to not muted when I start. It is not visible in alsamixer. The sound system has requested the volume control application to show this button, I will investigate why this is.