Comment 68 for bug 122560

My headset works now properly on my Dell Precision M4300

Kubuntu: 2.6.22-14-generi
Soundcard: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)

I used therefore the last alsa driver ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.15rc3.tar.bz2

cd /tmp
wget ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.15rc3.tar.bz2
tar -jxvf alsa-driver-1.0.15rc3.tar.bz2
cd alsa-driver-1.0.15rc3/
./configure --with-cards=hda-intel && make
sudo make install
sudo cp ./modules/snd-hda-intel.ko /lib/modules/$( uname -r )/ubuntu/media/snd-hda-intel/
sudo depmod -a
sudo reboot

Nomaly the sound is on mute so turn it on afterwords

LG
Max