Headphone for Intel 82801G.

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Hello,
I'm going to explain my problem:
I've got some sound in my speaker but not in my headphone jack.

I'm on a KeyNux laptop with Debian lenny.

I have removed packages alsa-* because with them, the speakers
works, but the headphone doesn't.

Here is my lspci: http://neo2017.free.fr/alsa/lspci.log
We can see: 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family)
High Definition Audio Controller (rev 02)

So, I have an Intel integrated sound card with a Realtek ALC883 chipset
(see below).

I tried (compiled & installed) this version of ALSA:
    Stable Release(2007-06-11)
        Driver (alsa-driver) 1.0.14
        Library (alsa-lib)     1.0.14a
        Plugins (alsa-plugins)     1.0.14a
        Utilities (alsa-utils)     1.0.14
        Firmware alsa-firmware) 1.0.14

And the "Daily Snapshot Tarballs" too, but without any success.

To build alsa-driver, I did : ./configure --with-cards=all
--with-card-options=all ; make; sudo make install
For all other tarball, I did: ./configure ; make; sudo make install

Then, I did: sudo alsaconf => My soundcard had been correctly detected:
http://neo2017.free.fr/alsa/alsaconf01.png

Then, I reboot. I think it is not necessary due to the
/etc/init.d/alsasound script, but I nevertheless reboot.

In alsamixer I can't adjust the sound level of my headphone and I have
no sound in.
Note: The sound in my speakers works again.

I can see it in alsamixer:
        Card: HDA Intel
        Chip: Realtek ALC883
See: http://neo2017.free.fr/alsa/alsamixer01.png

In the file: /etc/modprobe.d/sound there are:
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel

I tried to add this:
options snd-hda-intel model=XXX
Where, XXX is a model picked in this list:
./alsa-driver-hg20070830/alsa-kernel/Documentation/ALSA-Configuration.txt
The extract for my chipset: http://neo2017.free.fr/alsa/ALC883.log

For each model I tried, I did a "/etc/init.d/alsasound restart" before
start alsamixer to verify if I have sound for the headphone.

So, someone know where I'm wrong ?
Is the problem is with alsa-driver or alsa-utils (alsamixer) ?
Is a patch exist for my sound card/chipset ?

Thank you !
Guillaume.

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