Linux 2.6.21 regression with hda-intel (Conexant 5045)

[Gunter Ohrner <G.Ohrner@post.rwth-aachen.de>]

Hi!

First of all: Sorry if this question is dumb or a fix should be obvious, but
as a non-ALSA_expert I'm a bit a a loss at the moment... I searched the
bugtracker and this list but could not find anything appropriate - most
probably I missed a relevant post or didn't recognize it as being
relevant...

Any pointers are greatly appreciated!

The situation is as follows: Using Linux 2.6.20.4, my laptop's soundcard
works just fine. Using 2.6.21.1, it also works, but the headphone socket is
dead. Plugging a headphone into it correctly mustes the internal speakers,
but no sound is output via the headphones.

Details:

- Fujitsu Simens Amilo Si1520
- Codec: Conexant ID 5045 (as reported by Linux 2.6.20.4)

Alsa device details between both Linux kernels differ completely, with Linux
2.6.20.4 only reporting a single a single analog PCM device and Linux
2.6.21.1 reporting a Conexant Analog and a Conexant Digital device. Should
I still post the complete information from /proc/asound/* for both kernels?

I tried applying conexant-test22.patch by Tobin Davis, but it does not seem
to match the in-kernel ALSA code. It also does not seem to be related to
the 5045 chip...

Any ideas?

Greetings,

  Gunter