[ubuntu-za] No sound

[Bill Cairns]

On Thu, May 20, 2010 at 2:23 PM, Wesley Werner <wesley.werner at gmail.com> wrote:
> alsamixer allows you to adjust sound input and output levels for various
> channels. The idea is to use it to make sure your sound output / master
> channels volume is not zero.
> http://en.wikipedia.org/wiki/Alsamixer
>

Thanks Wesley. I am just not quite sure what all the channels are and
how they should be set. I have   Master   > Headphone      PCM
Front    Front Mic J  Surround     Center        LFE     Line Jack M
Mic Jack Mo S/PDIF Play    Beep     Swap Center.

Front Mic, Line Jack M, Mic Jack Mo, and Swap Centre all seem to be
disabled. But I don't understand what they are and how they should be
set.