I’ve recently installed Ubuntu Jaunty on an HP Pavilion dv6-1110ss and everything I tried worked fine except for one thing: there was no sound.
After searching for a while and trying out some stuff, the solution is easy. Just open file /etc/modprobe.d/alsa-base.conf and add the following lines:
options snd-pcsp index=-2
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=hp-m4
options snd-hda-intel [...]

Just a quick note today to mention that I’ve updated the julius-voxforge package in Ubuntu Karmic from the two-years old 0.1.1~build726 to a recent daily snapshot. This new one has been generated using much more recorded speech (but on the other hand there are also some errors in the transcriptions which haven’t been fixed yet [...]