No sound - Slack 12.2, HP 6730s

[kea]

Dear Friends,

I've installed Slack 12.2 (all packages for simplicity) onto a HP 6730s laptop with an integrated Intel HD audio in it. I have no sound. I've tried some tricks without any success. E.g. I've reinstalled a/devs-xxx.tgz in order to have /dev/dsp0 etc. After I had reinstalled the package I had /dev/dsp0, /dev/dsp as a symlink etc. There were no sound at all. After a reboot I noticed that the reinstalled devices disappeared. (!???)

lsmod says that there are a large number of snd modules are loaded:
snd_seq_dummy
snd_seq_oss
snd_seq_midi_event
snd_seq
snd_seq_device
snd_pcm_oss
snd_mixer_oss
snd_hda_intel
snd_pcm
snd_timer
snd_page_alloc
snd_hwdep
snd snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd _mixer_oss,snd_hda_intel,snd_pcm,snd_timer,snd_hwd ep
soundcore

Alsaconf, alsactl etc. seems to work correrctly, Master, Headphone, PCM is not muted.

Neiter aplay nor mpg123 can produce a hearable sound.

What should (can) I do? Thx, KEA.

[Freston]

Hi and welcome!


What is the exact make&model of the intel audio card?

lspci|grep -i audio

And what version of Alsa are you running?

[kea]

Hi,

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

Kernel 2.6.27.7

Alsa packages:
alsa-lib-1.0.17a-i486-1
alsa-oss-1.0.17-i486-1
alsa-utils-1.0.17-i486-2

I have tried to plug in an earphone just now, and that sounds!

You have any idea, haven't you?

KEA.

[mingdao]

Run this command:

speaker-test -Dplug:front -c2 -t wav

And check "lspci -v" to see what kernel module it's using.

The codec for some of those HDA Intel are better supported than others.

Can you also give a link to the specification page for your laptop?

[kea]

lspci -v says:

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
Subsystem: Hewlett-Packard Company Unknown device 3614
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at 98800000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel


speaker-test (I've never heard of that) was saying:
root@kea-otthon:~# speaker-test -Dplug:front -c2 -t wav

speaker-test 1.0.17

Playback device is plug:front
Stream parameters are 48000Hz, S16_LE, 2 channels
WAV file(s)
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 16384
Period size range from 32 to 8192
Using max buffer size 16384
Periods = 4
was set period_size = 4096
was set buffer_size = 16384
0 - Front Left
1 - Front Right
Time per period = 2.731036
0 - Front Left
1 - Front Right
Time per period = 3.071838
0 - Front Left
1 - Front Right
Time per period = 2.901391
0 - Front Left
1 - Front Right
Time per period = 3.071917
0 - Front Left
1 - Front Right
Time per period = 3.071762
0 - Front Left
1 - Front Right
^C (etc. etc. etc.)

Do these mean something relevant?

KEA.

[Freston]

This is mine (it's not exectly alike, seems your is newer

00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller
 (rev 03)
        Subsystem: COMPAL Electronics Inc Unknown device 0026
        Flags: bus master, fast devsel, latency 0, IRQ 23
        Memory at f8400000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
        Kernel driver in use: HDA Intel
        Kernel modules: snd-hda-intel

I had some issues with mine in the pre-ALSA-1.0.15 era. I use ALSA-1.0.15 atm on Slackware 12.1 though and it works.

What happens when you run `alsaconf`?
You can get it to safe error messages, in fact, do that and post them here

alsaconf 2> alsaerrors
cat alsaerrors

Post here


EDIT:

Do these mean something relevant?

You where supposed to hear a lady say: front-left front-right etc etc but I take it you didn't hear anything?

[kea]

Alsaconf works interactive, without any error message (redirected error file has 0 bytes). In step 'sound card selection' it lists the hda-intel and a list of possible legacy ISA cards (which I don't have).

After I have selected 'hda-intel' alsaconf says that the sound driver is configured, an runs alsasount init script and finally 'Now ALSA is ready to use".

KEA.

[Freston]

Hmmmmm, looks like a false positive on the side of ALSA here.


If I where you, I'd upgrade to the latest ALSA-1.0.20 [click]

You don't have to install all packages, but at least upgrade alsa-driver and alsa-lib.

[mingdao]

Run this script bulletproof.servebeer.com/alsa/scripts/alsa-info.sh and post the link to it's ouput. It will automatically post it to pastebin.

[vonbiber]

I think this is an issue with some of these INTEL audio cards and linux
I have an hp laptop with the same card

00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)

I don't get any sound at all (not just in slackware 12.2 but in any linux live I tried).
I tried to build newer kernels (up to 2.6.30.1) and it's still silent.

I just keep hoping there'll be a fix in either alsa or the kernel.