Toshiba satellite A200 notebooks equipped with 82801G (ICH7 Family) High Definition Audio Controller which does not have built in ubuntu support.
you can either compile the module from the source or just do an apt-get which is much easier
just do this
apt-get install linux-backports-modules-2.6.22-14-generic
it will solve the problem.(i tested with gutsy but it may work with others also)
