[SOLVED] No audio No alsamixer

[clickit]

Trying to get audio and alsamixer to work under xfce on Slackware 13.0. using 2.6.29.6-smp kernel.
Have done alsaconf and alsactl store.
/etc/modprobe.d/sound contains:
alias snd-card-0 snd-via82xx
alias sound-slot-0 snd-via82xx

/etc/modprobe.d/modprobe.conf contains only commented lines.

Running aplay -l produces:
**** List of PLAYBACK Hardware Devices ****
card 2: V8235 [VIA 8235], device 0: VIA 8235 [VIA 8235]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 2: V8235 [VIA 8235], device 1: VIA 8235 [VIA 8235]
Subdevices: 1/1
Subdevice #0: subdevice #0

Running: cat /usr/share/apps/kolf/sounds/blackhole.wav > /dev/audio
yields:
/dev/audio: Invalid argument

Running: cat /usr/share/apps/kolf/sounds/blackhole.wav > /dev/dsp
yelds:
/dev/dsp: Invalid argument

Running aplay /usr/share/apps/kolf/sounds/blackhole.wav yields:
ALSA lib pcm_dmix.c:1008snd_pcm_dmix_open) unable to open slave
aplay: main:590: audio open error: No such file or directory
1) Can someone elighten me on this error?

ls -l /usr/share/apps/kolf/sounds/blackhole.wav yields:
-rw-r--r-- 1 root root 391724 2009-02-26 06:28 /usr/share/apps/kolf/sounds/blackhole.wav

When I run alsamixer all I get is "auto gain" no other mixer controls like PC speaker, IECxxx, Left/Right/Center, MIC, etc. This is not like version 12.
2) Any clues for me on this problem?

[coopstah13]

is your user member of audio group? you need to be in order to use sound

[reed9]

Can you post the output of

cat /proc/asound/card*/codec* | grep Codec
cat /proc/asound/version

[clickit]

reed9,
cat /proc/asound/card*/codec* | grep Codec yields:
cat: /proc/asound/card2/codec97#0: Is a directory

I presume this is what u wanted because cards 0&1 had no codec in the file titles.
Just for drill, the 2 files in codec97#0 are: ac97#0-0 ac97#0-0+regs

cat /proc/asound/version yields:
Advanced Linux Sound Architecture Driver Version 1.0.18a.
alsamixer -h also returns version is 1.0.18.

coopstah13.
I am root.

Does this get us any further?

[reed9]

Hmm. Well, alsa 1.0.18 is somewhat old. You might consider installing a more recent version of alsa and seeing if that solves the issue.

What is the output of

lsmod | grep via

Also, in alsamixer, you can select the sound card by hitting F6. Perhaps that shows your card?

[clickit]

F2 gets: /proc/asound/ info below:
/proc/asound/cards: ▒ │
│ │=================== ▒ │
│ │ 0 [camera ]: USB-Audio - USB camera ▒ │
│ │ USB camera at usb-0000:00:10.3-1.2, full speed▒ │
│ │ 1 [Bt878 ]: Bt87x - Brooktree Bt878 ▒ │
│ │ Brooktree Bt878 at 0xdddff000, irq 10 ▒ │
│ │ 2 [V8235 ]: VIA8233 - VIA 8235 ▒ │
│ │ VIA 8235 with ALC650F at 0xe000, irq 5
F3 gets: alsamixer <auto gain>
F4 gets: alsamixer <mic>
F5 gets: alsamixer <auto gain> and <mic>
F6 gets: NO CHANGE

lsmod | grep via gets:
snd_via82xx 22772 1
gameport 9960 1 snd_via82xx
snd_ac97_codec 100128 1 snd_via82xx
snd_mpu401_uart 6524 1 snd_via82xx
via_rhine 21700 0
snd_pcm 68128 5 snd_pcm_oss,snd_via82xx,snd_usb_audio,snd_ac97_cod ec,snd_bt87x
mii 4380 1 via_rhine
i2c_viapro 7440 0
snd 50820 20 snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_ via82xx,snd_usb_audio,snd_ac97_codec,snd_hwdep,snd _mpu401_uart,snd_bt87x,snd_rawmidi,snd_pcm,snd_seq _device,snd_timer
via_agp 7900 1
agpgart 29256 1 via_agp
snd_page_alloc 7972 3 snd_via82xx,snd_bt87x,snd_pcm

alsamixer version that came with ver 13.0 of slackware.

Don't know if this impacts here, but I am having a problem with my webcam and bootup image sensor detection being flat FLAKEY. The camera has a microphone which I call out using mplayer and yesterday I was a happy camper when I was getting images. Usually if the image sensor (HV7131R ) is detected during bootup it usually worked. Today it is moaning about "unable to open, no space left on device". Don't know if that is audio (mic) related.

[clickit]

I cannot figure this out! On my 3rd bootup today 27 Jul. Now when I type alsamixer I nearly went into cardiac arrest <) There it was in all its resplendent glory.
I never have gotten the mixer's parameters so I set master, PCM, Center and Line to 100%.
Still no sound. Why does this appear or not at will??? Is this related to the bootup as this is the 2nd time I could find the HV7131R image sensor detected?

[clickit]

On Slackware 13.0 (kernel 2.6.29.6-smp, xfce4.6.1-i486-5, ALSA Version 1.0.18a on a MSI KT4V-L ver 1.0 motherboard and V8235 PCI bridge) when running alsamixer from xfce desktop alsamixer did not have all the mixer control items displayed (just auto gain and MIC).
SOLUTION: Ran alsamixer via command line before starting a desktop and produced an alsamixer with all of its items. Quit from alsamixer and started desktop. Thereafter, running from the desktop, alsamixer functions properly with a full compliment of control items. This gave me capability to unmute etc. and it seems to work consistently (just wait until I am desperately needing it then it will fail <);^).

I did quickly scan a few statements from one site contending a relationship with V8235 but at the time I was querying for another reason and panned the document. If someone is familiar with this I would like to pursue it further.

The relationship with HV7131R bridge I think now is not very likely or nebulous at best.