Comment 34 for bug 407790

I've also file a bug on alsa about it (https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4665 ) and I tried some things in the subsequent days.

The current status is:
* I have no way to make it work with alsa 1.0.20
* Kernel 2.6.31 comes with a more recent alsa version, which offers a new option "model=5stack-no-fp" (seems that it's still labeled 1.0.20)
* If model is set to 5stack-no-fp and "Line Jack Mode" = "Line Out" then sound works (Some channels have to be unmuted)
* After each reboot the "Line Jack Mode" must be set to a different value and then back to "Line Out" to make sound work
* This works for both the 2.6.31-6 kernel and the mainline kernel

I've tried to restart alsa after gnome starts and see if that helps with the re-adjustment of the line jack mode issue, but it didn't.