hey
I got the same onboard soundcard
sound ( ADI AD1888 )
lspci | grep 'audio'
ALi Corporation M5455 PCI AC-Link Controller Audio Device (rev 20)
What I did to make it work was:
edit /etc/modprobe.d/alsa-base file (sudo gedit /etc/modprobe.d/alsa-base)
and insert the following:
# ALSA portion
alias char-major-116 snd
alias snd-card-0 snd-intel8x0
options snd-intel8x0 index=0
options snd-intel8x0 buggy_semaphore=1
# module options should go here
# OSS/Free portion
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0
# card #1
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
# OSS/Free portion - card #1
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
# OSS/Free portion - card #2 (cmipci)
alias sound-slot-1 snd-card-1
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-12 snd-pcm-oss
Reboot
вот, что нагуглил для тебя, лентяй, поиском пользуйся! ( это отсюда
http://ubuntuforums.org/archive/index.php/t-317061.html, надеюсь по английски трохи понимаешь)