Comment 3 for bug 109838

I have the same model of toshiba laptop (a135-s4467) and have spent the last couple of hours trying to get audio working and then trying to get the speakers to mute when headphones are plugged in.

I ended up installing alsa-driver 1.0.14 rc4 to get audio working once again with Feisty. I tried "model=3stack" and "model=auto" both of which would produce audio but not mute the internal speakers when using the headphone jack. After looking through the patch_realtek.c code, I found that a number of realtek based codec configurations require a little extra work to enable proper jack sensing.

For the ALC861-VD, someone had implemented this jacks sensing for the lenovo model. So, I changed my model from "3stack" to "lenovo" and voila, audio works as expected and jack sensing works as well.

Note: I did have to unplug and replug my headphones after I changed the model (sudo modprobe -r snd-hda-intel && modprobe snd-hda-intel model=lenovo) for the muting to work but I haven't run into any other quirks over a couple of reboots now after I set the model in /etc/modprobe.d/alsa-base.

I hope this helps.