kde volume control question

[Kent West <westk@acu.edu>]

I have a couple of different machines doing this.

Audio works fine, volume control works fine from the mixer, depending on 
which control I move. However, the systray volume control related to 
kmix doesn't control the device in kmix which controls the volume.

For example, on this machine in front of me, I can be playing some 
audio, but the little blue KDE volume control down by the clock doesn't 
affect the volume, but if I click on the word "Mixer" when that control 
is "open", that will open the mixer window, and I can control the volume 
by moving the PCM control in the Output tab.

If it's easy enough to explain, I'd like to know how a mixer works (what 
is PCM; what do the green and red lights mean; etc), but that's probably 
more complicated (and may vary depending on hardware) than is suitable 
here, so my real question ...

How do I get the volume control in the systray to control the PCM 
control instead of whatever other control it is presumably controlling?

Thanks!

--
Kent West
http://kentwest.blogspot.com