Having learned the hard way that life is to short for gentoo, my laptop now runs kubuntu.
Update worked without major problems.
Some tweaking to activate the headphone jack
ALSA Sound Upgrade wegen Kopfhörerbuchse! (1.0.14rc3)
(hda-intel) Subwoofer!
/usr/src/alsa/alsa-[lib|util]
configure make make install
Damit der Subwoofer wooft:
/etc/modules.d/alsa-base
options snd-hda-intel model=ref
To control the volume of the subwoofer together with the main volume:
#!/bin/sh while true; do dcop kmix Mixer0 setVolume 2 `dcop kmix Mixer0 volume 0` dcop kmix Mixer0 setMute 2 `dcop kmix Mixer0 mute 0` sleep 1 done