Mixer Applet on desktop & No Sound

[Mark_in_Hollywood]

I have installed the Audio Mixer (Alsa Mixer) on my desktop as I could not control the audio volume in MythTV.

At first, the Master Volume moved the sound volume up and down. Then I added "Headphones" from Select Controls. After that, I have no sound in any application. VLC plays but no sound. MythTV shows tv picture but no sound. I have rebooted to see if that would correct itself. No I have not Muted the sound and missed the little X through the loudspeaker icon.

Audio Mixer title bar reads in full: Audio Mixer - HDA NVidia (Alsa mixer).

Sound card (pull down menu reads): HDA Nvidia (Alsa mixer)
USB Device 0x46d:0x807 (Alsa Mixer)
Playback: Built-in Audio Analog Stereo (PulseAudio Mixer)
next come capture devices. Is that relevant? See screenshot if relevant.

Moving the Audio Mixer applet to the desktop brought up a warning about "not executable" and trusted. I clicked Make Executable or some such.

And each time I call (run) the Mixer Applet, the Master Volume's loudspeaker icon is set to Mute (x through it).

I find a related idea at: https://bbs.archlinux.org/viewtopic.php?id=139723

And this guy had to compile the Alsa driver - http://www.debianuserforums.org/view...hp?f=55&t=1969

The following URL had a temporary fix.

http://askubuntu.com/questions/65764...nd-with-amixer

Run this line:

for i in $(amixer |grep -o \'.*\'); do amixer set $i unmute; done

I may be goofy wrong about this but this bug seems to have fubar'd my panel icon for Thunderbird. It won't launch.
Anyone know what has happened here?

[Yellow Pasque]

Right click on the mixer icon (in the taskbar, not the desktop) and select "Properties" to select which card/channel you want, or if you're into terminal commands, here's an example to see which track is active:

xfconf-query -c xfce4-mixer -p /active-track

[Mark_in_Hollywood]

mark@Lexington-19:/$ xfconf-query -c xfce4-mixer -p /active-track
Property "/active-track" does not exist on channel "xfce4-mixer".

[Yellow Pasque]

Hmm. Maybe Ubuntu does xfconf differently than Debian because that command works for me. Anyway, you didn't mention whether you used the other technique:

Right click on the mixer icon (in the taskbar, not the desktop) and select "Properties" to select which card/channel you want