hi
now if you like to try ubuntu...it uses a sound server called pulseaudio....and its based on Debian
but here are a number of pages..with screen shots that will help you solve your issues
your issues can be summarised into
bios
firmware
hardware is failing...not connected properly etc
sound configs wrong
mixer muted
mixer volume too low
try the master page
http://sidux.com/index.php?module=Wi...ag=SoundMaster
and pay attention to various checks pls
http://sidux.com/index.php?module=Wikula&tag=NoSound
some of those commands won't work for you so just tell us what you see but post the outputs all inside a code box
good luck