[SGVLUG] sound laptop oddities

[Michael Proctor-Smith]

As for the docking station the docking station card is probably use
being detected before the onboard card. As sometimes detection order
changes with kernels. He should beable to set this to use his onboard
audio instead.

> of these to zero mutes the sound.   Okay, linux audio fans, what do
> these two elements "master" and "pcm" mean?

Just what they say, You have to think about it like an analog mixing
board(what not every has used one). There are lots of different inputs
or channels one is pcm other is usally line-in, another might be the
analong cd in that you guys might remeber. While "master" is all input
mixed together. So lets say you wanted to lessen to a line in and
still be able to hear the sounds that the computer might make. You set
the line-in to the right level, it gets mixed with the sound from the
computer pcm(level set by its slider) then you can change boths level
by changing the master.

So yes most of the time the pcm level is the only one that people care
about as that is usally the sound generated by there mp3, or media
player but its output level is also affected by the master.