Re: How to unmute the sound?

Hi,

I had the same problem (this time with an ASUS A8F laptop) but I
managed to fix it by passing the model option to modprobe. Maybe you
should try again with kernel 2.6.25 (it's now in unstable), I saw that
there is a new model name for your codec chip (STAC9205):

STAC9205/9254
ref Reference board
dell-m42 Dell (unknown)
dell-m43 Dell Precision
dell-m44 Dell Inspiron

Just for the record, this is what I did:

Sound always worked fine until one of the last week upgrades to
unstable/experimental, so the first thing was to determine the codec
chip used in my laptop:

$ tail -n 2 /proc/asound/oss/sndstat
Mixers:
0: Analog Devices AD1986A

Then I checked the the ALSA-Configuration.txt for the possible model
names for the AD1986A codec chip and after a few cycles of:

modprobe -r snd-hda-intel
modprobe snd-hda-intel model=...
alsamixer
speaker-test -t wav -D plug:front -c2 -l2

I found that the right model name was laptop-eapd, so finally I added
the following line to the /etc/modprobe.d/alsa-base:

options snd-hda-intel model=laptop-eapd




On Mon, Feb 18, 2008 at 6:56 AM, Michael Yang <michael.yxf@xxxxxxxxx> wrote:

I have upgraded the dist to 2.6.24-1-686, the problem still exists.

I tried the ways I can do to install the driver successfully, but still has no sound to output.

- I downloaded the latest alsa driver 1.16 and it's compiled successfully, and the alsa-lib alsa-util can be installed without problems, the volume can be ajusted well, mute or unmute ok.
- use "m-a a-i alsa-source" to compile the driver and install it.

But no sound to output.

It's suffering me a lot. I tried to load the module using " modprobe snd-hda-intel model=dell-m44" or "m42", it can't solve the problem. Whenever opening the audio file, it returns the alsa lib error and errors like "no sound card found":
[AO_ALSA] alsa-lib: confmisc.c:768:(parse_card) cannot find card '0'
[AO_ALSA] alsa-lib: conf.c:3513:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
[AO_ALSA] alsa-lib: confmisc.c:392:(snd_func_concat) error evaluating strings
[AO_ALSA] alsa-lib: conf.c:3513:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
[AO_ALSA] alsa-lib: confmisc.c:1251:(snd_func_refer) error evaluating name
[AO_ALSA] alsa-lib: conf.c:3513:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
[AO_ALSA] alsa-lib: conf.c:3985:(snd_config_expand) Evaluate error: No such file or directory
[AO_ALSA] alsa-lib: pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
[AO_ALSA] Playback open error: No such file or directory
Could not open/initialize audio device -> no sound.

Also the output of "aplay -l" returns the following errors:
aplay: device_list:205: no soundcards found...

But seems the driver has been loaded and sound card can be detected, it's confused.

Here is some relevant info:
michael@debian:~$ lsmod | grep snd
snd_hda_intel 302236 0
snd_pcm_oss 38496 0
snd_mixer_oss 15712 1 snd_pcm_oss
snd_pcm 69924 2 snd_hda_intel,snd_pcm_oss
snd_timer 21732 1 snd_pcm
snd_page_alloc 10056 2 snd_hda_intel,snd_pcm
snd_hwdep 8868 1 snd_hda_intel
snd 50196 6 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep
soundcore 7552 1 snd

michael@debian:~$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)

michael@debian:~$ head -1 /proc/asound/card0/codec#0
Codec: SigmaTel STAC9205

michael@debian:~$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfebfc000 irq 20

michael@debian:~$ uname -r
2.6.24-1-686

michael@debian:~$ dpkg -l *alsa*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-======================-======================-============================================================
un alsa <none> (no description available)
ii alsa-base 1.0.15-4 ALSA driver configuration files
pn alsa-firmware-loaders <none> (no description available)
pn alsa-modules-2.6.22-2- <none> (no description available)
pn alsa-modules-2.6.22-3- <none> (no description available)
ii alsa-oss 1.0.15-1 ALSA wrapper for OSS applications
pn alsa-source <none> (no description available)
ii alsa-utils 1.0.15-3 ALSA utilities
pn alsamixergui <none> (no description available)
ii gstreamer0.10-alsa 0.10.17-2 GStreamer plugin for ALSA
un libarts-alsa <none> (no description available)
un libesd-alsa0 <none> (no description available)
ii libsdl1.2debian-alsa 1.2.13-2 Simple DirectMedia Layer (with X11 and ALSA options)
pn libwine-alsa <none> (no description available)
pn xfce4-mixer-alsa <none> (no description available)
pn xmms2-plugin-alsa <none> (no description available)


Could anybody instruct what could I do to fix the problem?

Thanks a lot!



On Feb 16, 2008 10:46 AM, Andrew Sackville-West <andrew@xxxxxxxxxxxxxxxxxxxx> wrote:

Hey Michael, I'm not qualified to help solve this problem and can only
help you ask the right questions (which is why I didn't respond to
your response to my questions...).

here's a link of interest:

https://bugs.launchpad.net/ubuntu/+bug/122560

there is some interesting discussion of potential problems that might
steer you in the right direction.

On Fri, Feb 15, 2008 at 08:00:48PM -0500, Michael Yang wrote:
Here is the error message when I open the audio file:

[AO_ALSA] alsa-lib: confmisc.c:768:(parse_card) cannot find card '0'
[AO_ALSA] alsa-lib: conf.c:3510:(_snd_config_evaluate) function
snd_func_card_driver returned error: No such device

...

these (and subsequent errors) say that the hardware has not been
detected properly.


I have tried uninstall alsa driver and re-compile and reinstalled it for
several times, the problem still exists.

stop installing non-debian stuff or you'll likely not get
help. Totally remove all the non-debian stuff. reinstall the kernel
and see what happens.

BTW, what kernel are you running?

what alsa pakages are installed?

dpkg -l \*alsa\*

Finally, you claim that it suddenly stopped working for no
reason. Well, there must be some reason. Did you upgrade anything?
Install or remove any packages?

I'll leave the stuff below for reference.

A


...

the output of "lsmod | grep snd":

snd_hda_intel 310460 0
snd_pcm_oss 38720 0
snd_mixer_oss 15840 1 snd_pcm_oss
snd_pcm 70116 2 snd_hda_intel,snd_pcm_oss


snd_timer 21732 1 snd_pcm
snd_page_alloc 10056 2 snd_hda_intel,snd_pcm
snd_hwdep 8868 1 snd_hda_intel
snd 50100 6 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_hwdep


soundcore 7520 1 snd

relevant portion of lspci:

00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c)


00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Contoller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)


00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)


00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 02)


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--
Julian Hernandez Gomez
Taipei Taiwan
TTI - Team Telecom International Ltd.
Your Network Management Partner
Mobile: +886-955995314
Email: julianhernandez@xxxxxxxxx


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