[Ubuntu 8.04alpha5] Notebook: headphones and speakers not muteable seperately

Upstream has provided a partial solution:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3800
This is, however, only a partial solution, because
1. I have still no "jack-sense" (the speakers don't mute automagically when I plug in the headphones), and
2. the working solution is somehow a "hack" (because I have to force ALSA to believe that I have an Acer, while I have a Fujitsu/Siemens with Centrino platform).

(BTW the alsa community was very friendly and responsive. My heroes!)

The link you gave above doesn't work.
I have Fujitsu-Siemens Amilo PA 2510 and confront the same problem. Can you post the solution?

serafeimg:
    Check this post: http://ubuntuforums.org/showpost.php?p=4872650&postcount=11

Now I found something interesting about this bug. The bug seems to be purely an ubuntu introduced bug, because it i fixed with the current alsa. This bug was actually fixed in alsa around the 7th of March (bug report along with the patch is here: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3800 ). I have looked in the ubuntu packaged ALSA sources, and diffed them against a recent mercurial snapshot of alsa-driver (2008-05-02), and it seems that the patch has been incorported into the ubuntu packaged alsa sources already.

However the fix doesn't work for the ubuntu packaged alsa driver. It works great on my alsa snapshot though. So this bug has probably been introduced by ubuntu at some point, or there is something missing in the ubuntu that makes the upstream fix inefficient.

The fix as described in alsa bug report was to add a new model for the ALC883 codec. The new model name is pi2515. Adding the line
options snd-hda-intel model=fujitsu-pi2515
at the end of /etc/modprobe.d/alsa-base is supposed to fix the problem. It does fix the problem when alsa is manually compiled and installed, but doesn't fix it with the ubuntu packaged alsa driver.

Same bug, other Notebook. Me and a friend of mine have the exact same Fujitsu/Siemens Xi 2428 but doesn't mute the speakers when we plug in the headphones.

This problem is most likely in alsa-driver

same for Fujitsu-Siemens Amilo Li2727.
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/59582
it seems to need to look like an acer...

Please execute the alsa-info.sh script referenced from https://wiki.ubuntu.com/DebuggingSoundProblems and attach the URL here.

Quick and easy solution that worked in Intrepid on an Li2727 notebook:

1. Install the linux-backports-modules-intrepid package

2. Add acerhk to the bottom of the /etc/modules.conf file (no need to install it -- acerhk is already there and works fine)

3. Create a new text file and add the following:

echo on > /proc/driver/acerhk/wirelessled

Save it as S19wifiactivate in your /home directory, then type the following to move it to the boot script directory:

sudo mv ~/S19wifiactivate /etc/rc2.d/
sudo chmod +x /etc/rc2.d/S19wifiactivate

Reboot. Everything should work OK. It did for me, anyway.