problem with alc655 ac97 driver [long mail]

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Hi,
I can't make the alsamixer work. I can't get rid of the message:

alsamixer: function snd_ctl_open failed for default: No such device

and it seems there is no driver loaded.

Some useful info:

1)My soundcard is embedded in my motherboard. My motherboard is a KINO 
690 AM2:

http://www.ieiworld.com/en/Product_IPC.asp?model=KINO-690AM2

The chip is the alc655 with AC '97 codec, and it is correctly recognized 
by lspci:

00:14.5 Multimedia audio controller: ATI Technologies Inc SB600 AC97 Audio

so there is a Southbridge600 connected to the audio chip, which is a ALC655

2) I followed all the instructions on the Alsa Troubleshooting Page
http://alsa.opensrc.org/index.php/TroubleShooting
but I always get alsamixer not loading.

3) I also dlownloaded and installed a package from Realtek (basically 
the latest alsa packages + some shell scripts removing kernel modules) 
from this page:
ftp://66.104.77.130/pc/audio/realtek...-4.06a.tar.bz2 
<ftp://66.104.77.130/pc/audio/realtek-linux-audiopack-4.06a.tar.bz2>
but nothing changes

4) I still struggle about understing whether I need to load the
snd-hda_intel
or the
snd_atiixp
module. Anyway I tried both of them and none works.


5) IF the correct module is the atiixp, I doubt that this driver is not 
recognizing the SB600 yet: my suspect comes from the insight of the file

alsa-driver-1.0.16/alsa-kernel/pci/atiixp.c

where I can read:

static struct pci_device_id snd_atiixp_ids[] = {
       { 0x1002, 0x4341, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB200 */
       { 0x1002, 0x4361, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB300 */
       { 0x1002, 0x4370, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB400 */
       { 0, }
};

and I don't see any SB600 anywhere.
Note that inserting

{ 0x1002, 0x4383, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },

which could be a possible entry for SB600,changes nothing :-(


6) Some command output which may be useful for you:


cat /proc/asound/version

Advanced Linux Sound Architecture Driver Version 1.0.16.
Compiled on Apr 15 2008 for kernel 2.6.23.



lsmod | grep -i snd

snd_hda_intel         318332  0
snd_pcm                59408  1 snd_hda_intel
snd_timer              17548  1 snd_pcm
snd_page_alloc          7368  2 snd_hda_intel,snd_pcm
snd_hwdep               6340  1 snd_hda_intel
snd                    40228  4 snd_hda_intel,snd_pcm,snd_timer,snd_hwdep
soundcore               5344  1 snd




cat /proc/asound/cards

--- no soundcards ---



cat /proc/asound/oss/sndstat

Sound Driver:3.8.1a-980706 (ALSA v1.0.16 emulation code)
Kernel: Linux omegabox 2.6.23 #2 Mon Feb 11 17:40:05 CET 2008 i686
Config options: 0
Installed drivers:
Type 10: ALSA emulation
Card config:
--- no soundcards ---
Audio devices: NOT ENABLED IN CONFIG
Synth devices: NOT ENABLED IN CONFIG
Midi devices: NOT ENABLED IN CONFIG
Timers:
7: system timer
Mixers: NOT ENABLED IN CONFIG





cat /etc/modules.conf

# /etc/modules.conf (Linux 2.4 modules config file)
#
# This file is for setting module options when using a 2.4 kernel.
#
# For more information, see "man modules.conf".
# ALSA portion
alias char-major-116 snd
#alias snd-card-0 snd-atiixp
alias snd-card-0 snd-hda_intel
# OSS/Free portion
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0
# card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss




Please could you provide some help?

Thank you so much,
Luca




-- 
Ing. Luca Giulio Brayda, PhD   CSP s.c. a r.l. - EmSys Lab   
Research & Development         Via Livorno, 60 - 10144 Torino [IT]
Embedded Systems Lab	       tel. +39 011 481 5177	  
luca.brayda@xxxxxx	       fax  +39 011 481 5001
_____________________________________________________
http://www.csp.it

"There is no best decision in business as in life,
but there is a worst one: not to take any.", Ken Pope




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