Comment 5 for bug 14851

Add this line to /etc/modprobe.d/alsa-base if it is not already present:

    install snd-seq modprobe --ignore-install snd-seq && { modprobe --quiet
snd-seq-midi ; modprobe --quiet snd-seq-oss ; : ; }

If that is not enough then also replace this line:

    install snd-via82xx modprobe --ignore-install snd-via82xx &&
/lib/alsa/modprobe-post-install snd-via82xx

with this (all one one line):

    install snd-via82xx modprobe --ignore-install snd-via82xx && { modprobe
--quiet snd-seq ; /lib/alsa/modprobe-post-install snd-via82xx ; }