Comment 43 for bug 318942

Arnaud:

Please verify that your alsa-1.0.19 binaries are configured using

   ./configure --with-cards=hda-intel --with-kernel=/usr/src/linux-headers-$(uname -r)

The --with-cards=hda-intel is important I think. If you can't verify that this is the case, you should try compiling them yourself, following the instructions given above by Mauricio. Also, try varying the line in /etc/modprobe.d/alsa-base.conf that looks like

   options snd-hda-intel model=hp-m4

Some other values for model to try are "ref" "ref-no-jd" and "dell-m4-1". A full list of models is here:
http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt