I found another problem with intel soundcard onboard chipset when installed with ubuntu 9.04 jaunty. The sound won’t come out. After googling awhile, I read in http://www.ugos.ugm.ac.id/ there is a blacklist module setting for intel chipset in Ubuntu 9.04. We have to make some change in the setting to make it works. I don’t know why intel have been blacklisted.
We need to edit /etc/modprobe.d/alsa-base.conf in the terminal. Terminal is the best place to reset the setting like this.
Add these line in the last line of the alsa-base.conf
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=dell-m4-1
options snd-hda-intel enable_msi=1
Next go to the menu of System -> Preferences -> Sound
Choose all the settings sound to ALSA then click OK
We need to edit /etc/group setting to add priviledge to the user
change it into
Reboot your computer and hopefully your intel sound chipset will do his job.