This is how to install the via drivers and unmute the device :
1 go to http://www.alsa-project.org/ to download the stable version.
2 Login as root. Type ntsysv to configure the service of alsasound, sound, to be automatically started in boot init.d
3 Restart the Linux
4 put the following lines in /etc/modules.conf:
# ALSA native device support
alias char-major-116 snd
alias snd-card-0 snd-card-via8233
# OSS/Free setup
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
5 Type the command below to unmute all the channels
amixer set Master 22 unmute
amixer set Master Mono 22 unmute
amixer set Input Gain 22 unmute
amixer set Aux 22 unmute
amixer set Line 22 unmute
amixer set CD 22 unmute
amixer set PCM 22 unmute
I followed the sequence above and now I can play CD, mp3, realplayer, quicktime movie. Good luck for installing the sound driver. If anyone is interested 3D visualization of Math functions in Linux, please try my master piece at http://sourceforge.net/projects/mathdev/
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