Florian Kulzer wrote:
On Fri, Nov 16, 2007 at 14:39:47 -0600, Russ Cook wrote:
Florian Kulzer wrote:
On Fri, Nov 16, 2007 at 13:34:00 -0600, Russ Cook wrote:
After an upgrade some time ago, my system no longer initializes
the sound system.  It was posted before that this could be overcome
by removing the alsa modules manually, then running udevtrigger.
Currently, whenever I reboot, I run alsaconf until it removes the
modules, then escape and run udevtrigger.  This works, but is
there a way to restore automatic initialization on boot?  I'm
running Debian Sid, kernel 2.6.23.  Thanks for any help.

I missed this initially: Where does the 2.6.23 kernel come from? Did you
check if the problem is also present with a normal Debian kernel?

[...]

My motherboard is an ASUS A8N32-SLI Deluxe, with integrated
Realtek ALC850 codec.

I would like to see the output of

lspci | egrep -i 'audio|s(ou)?nd|media'

Output of lsmod | grep snd is attached as file 'sound'
Output of ls -l /dev/snd* /dev/dsp is attached as file 'sndlist'

That looks OK on first sight, assuming you indeed have an intel8x0 card.
I would now be interested to see the output of these two commands:

cat /dev/sndstat
cat /proc/asound/cards

Also, with which application(s) do you have problems? What happens if
you try the basic ALSA tools, e.g. if you run "speaker-test"?
The kernel was compiled from source, obtained from ftp.kernel.org.
I began with the config file in /boot from vmlinuz-2.6.21-2-amd64 , and
edited with 'make xconfig'  I still had sound after installing and booting
this kernel, although I had to use alsaconf to remove the sound modules, followed by udevtrigger to install them.

attached in order is output from your three requests above,

lspci | egrep -i 'audio|s(ou)?nd|media'
cat /dev/sndstat
cat /proc/asound/cards

Trying to run speaker-test gives a series of errors of the form:
Alsa lib pcm_dmix.c:866:(snd_pcm_dmix_open) unable to open slave
Playback open error: -16,Device or resource busy

Thanks again for any help.


00:0d.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio 
Controller (rev a2)
Sound Driver:3.8.1a-980706 (ALSA v1.0.14 emulation code)
Kernel: Linux Archimedes 2.6.23.07.10.27 #1 SMP Sat Oct 27 14:55:34 CDT 2007 
x86_64
Config options: 0

Installed drivers: 
Type 10: ALSA emulation

Card config: 
NVidia CK804 with ALC850 at irq 22
MPU-401 UART at 0x330, irq 5

Audio devices:
0: NVidia CK804 (DUPLEX)

Synth devices: NOT ENABLED IN CONFIG

Midi devices:
1: MPU-401 UART MIDI

Timers:
7: system timer

Mixers:
0: Realtek ALC850 rev 0
1: mixer10
 0 [CK804          ]: NFORCE - NVidia CK804
                      NVidia CK804 with ALC850 at irq 22
 1 [UART           ]: MPU-401 UART - MPU-401 UART
                      MPU-401 UART at 0x330, irq 5

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