Problem with Intel HDA sound card

DeNayGo · 03-04-2007, 10:06 AM

I have a problem with the following sound card:

Code:

00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Contr
oller (rev 02)
        Subsystem: ASUSTeK Computer Inc. Unknown device 13c4
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at fe1f8000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
        Capabilities: [70] Express Unknown type IRQ 0

I've activated Sound Card Support, ALSA and "Intel HD audio" in the kernel.

dmesg says this:

Code:

Advanced Linux Sound Architecture Driver Version 1.0.13 (Tue Nov 28 14:07:24 2006 UTC).
ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1b.0 to 64
input: AT Translated Set 2 keyboard as /class/input/input1
hda_codec: Unknown model for ALC882, trying auto-probe from BIOS...
ALSA device list:
  #0: HDA Intel at 0xfe1f8000 irq 16

cat /proc/asound/cards:

Code:

 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfe1f8000 irq 16

cat /proc/asound/pcm:

Code:

00-02: ALC882 Analog : ALC882 Analog : capture 2
00-01: ALC882 Digital : ALC882 Digital : playback 1
00-00: ALC882 Analog : ALC882 Analog : playback 1 : capture 2

/proc/asound/devices, etc. all show valid information, too. And there's the folder "card0".

There is also a /dev/audio, /dev/dsp and /dev/mixer.
What's missing is /dev/sound and /dev/snd (but I don't know enough about the whole thing to tell whether that really is a bad thing).

So, as you've seen, the card was recognized and everything, so how come alsamixer says this?

Code:

alsamixer: function snd_ctl_open failed for default: No such device

And that's what all programs with sound output say...
I don't understand this. How can the card be recognized and not recognized at the same time? Or did I forget something?
I've installed ALSA before on other PCs, and it always worked fine.

Emerson · 03-04-2007, 10:14 AM

This may help or may not. I've had sound problems with in-kernel ALSA. Building it as module made it work. Also, make sure you don't forget to run alsaconf.

DeNayGo · 03-04-2007, 11:27 AM

Well, it didn't work. But at least I'm one step closer. alsaconf now shows me my sound card. The mixers still don't want to see it though.. just like the other programs.

Emerson · 03-04-2007, 12:26 PM

Try a Google search for ALSA+Intel+stack, probably this is covered in ALSA documentation, too. Now you have it as module, meaning greater flexibility. Modules can be loaded with options. Example:

snd-hda-intel.position_fix=1
snd-hda-intel.model=3stack

DeNayGo · 03-04-2007, 03:13 PM

Thanks, but I haven't found anything that works, yet

Is it possible that udev isn't working properly? I mean, all that's missing is /dev/snd I think..

Emerson · 03-04-2007, 03:40 PM

If you think this is the case create them manually. Here are mine.

Code:

crw-rw---- 1 root audio 116,  0 2007-03-04 06:39 controlC0
crw-rw---- 1 root audio 116, 24 2007-03-04 06:39 pcmC0D0c
crw-rw---- 1 root audio 116, 16 2007-03-04 06:39 pcmC0D0p
crw-rw---- 1 root audio 116, 25 2007-03-04 06:39 pcmC0D1c
crw-rw---- 1 root audio 116, 17 2007-03-04 06:39 pcmC0D1p
crw-rw---- 1 root audio 116, 33 2007-03-04 06:39 timer

DeNayGo · 03-04-2007, 06:15 PM

Wow, that actually worked! Thanks

(haven't tried capture, yet, but playback is fine)

Now I'll just have to figure out why those devices weren't created automatically...