I have the same problem. I have a HDA Intel card with a Realtek ALC883 chip. My `lspci | grep Audio`:

00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)

To be able to control each one of the speakers (internal and headphones), I have this in /etc/modprobe.conf:

options snd_hda_intel model=3stack-6ch

But my longing is to connect the headphones and that the internal speakers mute automatically.



On Wed, Jun 11, 2008 at 5:55 AM, Scott Weisman <sweisman@pobox.com> wrote:
Hello,

I just obtained a Fujitsu P7120 notebook (a very nice model, by the way).

Overall, I am getting this working with Arch just fine (although I
would definitely appreciate pointers from anyone else who has
installed Arch, especially as I have been using a desktop until now
and haven't had the need to configure notebook-type features).

One problem I am having that I don't know how to fix is that when I
plug in headphones, the speakers don't turn off. Alsamixer shows that
the headphones and speakers have separate controls, something I have
never seen in a notebook before. While cool, I would really love to
have this automatically toggle as expected. Does anyone have a
suggestion?

Thanks,

Scott




--
Gustavo Andrés Gómez Farhat