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nekromancer
Apprentice
Joined: 23 Feb 2004
Posts: 158
Location: Niagara, Canada
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 Posted: Mon Feb 27, 2006 7:25 pm Post subject: alsa problem: intel sound driver not working |
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I am getting a real headache trying to get sound working on my pc.
I have an Intel D945PSN motherboard with the built in sound chipset.
I have compiled the gentoo-sources 2.6.15-r1 kernel with ALSA support
but I made everything to compile as modules. I select all the Intel
related modules as well.
I emerged alsa-driver, alsa-headers, alsa-utils, and alsa-tools, all
have version 1.0.11_rc2. I used alsaconf and it saw my sound chip,
except it ended with "unknown device". I let it go, I saw the
/etc/modules.d/alsa file.. it looked right. Modules got loaded cleanly
I used alsamixer but I saw only 2 volume controls, one for headphone
and the other was all black and it apeared to be 3 in 1 or something.
Line and mix.
Then I played something in mplayer using "-ao alsa" and got this
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Checking audio filter chain for 44100Hz/2ch/s16le->
44100Hz/2ch/s16le...
AF_pre: 44100Hz/2ch/s16le
alsa-init: 1 soundcard found, using: default
ALSA lib pcm_direct.c:783:(snd_pcm_direct_initialize_slave)
snd_pcm_hw_params_any failed
ALSA lib pcm_dmix.c:864:(snd_pcm_dmix_open) unable to initialize slave
alsa-init: playback open error: Invalid argument
Could not open/initialize audio device -> no sound.
Audio: no sound
Starting playback...
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then I tried "mplayer -ao oss" and got all this,
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[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
[AO OSS] Can't set audio device /dev/dsp to s16le output, trying s16le...
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I even tried #cat /dev/urandom > /dev/sound/dsp but I get this error
"cat: write error: Invalid argument"
Everything says that the snd-hda-intel driver is what I should use, yet
it doesn't seem to work.
This is my lspci output:
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0000:00:00.0 Host bridge: Intel Corp.: Unknown device 2770
0000:00:01.0 PCI bridge: Intel Corp.: Unknown device 2771
0000:00:1b.0 Class 0403: Intel Corp.: Unknown device 27d8 (rev 01)
0000:00:1c.0 PCI bridge: Intel Corp.: Unknown device 27d0 (rev 01)
0000:00:1c.2 PCI bridge: Intel Corp.: Unknown device 27d4 (rev 01)
0000:00:1c.3 PCI bridge: Intel Corp.: Unknown device 27d6 (rev 01)
0000:00:1d.0 USB Controller: Intel Corp.: Unknown device 27c8 (rev 01)
0000:00:1d.1 USB Controller: Intel Corp.: Unknown device 27c9 (rev 01)
0000:00:1d.2 USB Controller: Intel Corp.: Unknown device 27ca (rev 01)
0000:00:1d.3 USB Controller: Intel Corp.: Unknown device 27cb (rev 01)
0000:00:1d.7 USB Controller: Intel Corp.: Unknown device 27cc (rev 01)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev e1)
0000:00:1f.0 ISA bridge: Intel Corp.: Unknown device 27b8 (rev 01)
0000:00:1f.1 IDE interface: Intel Corp.: Unknown device 27df (rev 01)
0000:00:1f.2 IDE interface: Intel Corp.: Unknown device 27c0 (rev 01)
0000:00:1f.3 SMBus: Intel Corp.: Unknown device 27da (rev 01)
0000:01:00.0 VGA compatible controller: nVidia Corporation NV41.1 (rev a2)
0000:02:00.0 Ethernet controller: Intel Corp.: Unknown device 108b (rev 03)
0000:05:01.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
0000:05:01.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
0000:05:02.0 Communication controller: Rockwell International HSF 56k Data/Fax/Voice Modem (rev 01)
0000:05:05.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
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the output of #cat /proc/asound/cards is
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0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0x52300000 irq 20
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If anyone has any idea what is wrong with my setup or anything, I'd apreaciate the help a lot!
Thanks. |
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ikujam
n00b
Joined: 03 Aug 2005
Posts: 37
Location: Toulouse, France
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| Posted: Mon Feb 27, 2006 7:58 pm Post subject: |
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I remember having some trouble with that same sound card as well - trying to get a "monolithic" kernel I compiled them in though.
To make sure all the alsa modules are loaded, type :
# lsmod
You should see several snd_somestuff entries there, otherwise maybe a
# depmod -ae
# modprobe -v snd-hda-intel
can help. If that's the case, the missing bit is within the '/etc/modules.autoload.d/kernel-2.6' file which specifies the modules to load upon boot.
A hint about modules missing maybe :
# cd /usr/src/linux
# grep SND_ .config | grep -v not\ set
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HDA_INTEL=y
Good luck  |
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nekromancer
Apprentice
Joined: 23 Feb 2004
Posts: 158
Location: Niagara, Canada
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| Posted: Mon Feb 27, 2006 8:34 pm Post subject: |
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I recompiled my kernel this time with everything compiled in. I only selected the snd-hda-intel driver.
And .. man .. it worked! lol. I am almost laughing because I have no clue why having snd-hda-intel loaded as a module didn't work but compiled in does?!
Either way, mplayer -ao alsa gives sound but it skips, mplayer -ao oss gives smooth quality. Who knows why.
anyways thanks man. |
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ikujam
n00b
Joined: 03 Aug 2005
Posts: 37
Location: Toulouse, France
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| Posted: Tue Feb 28, 2006 2:08 pm Post subject: |
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Welcome, glad to hear it's working (better...) now 
The point is, unless I'm mistaken, the intel_hda driver is quite new and has its little quirks...
I went a little step further here. First the OSS driver is an emulation and for an outdated software that is. Then I assisted to some Linux Audio conference and i finished up
* emerging "jack-audio-connection-kit" and setting the USE-flag "jack"
(with qjackctl being a simple GUI app)
* and getting a "Low Latency" kernel with
Processor Type and Features
-> Preemption Model (Preemptible Kernel (Low Latency Desktop))
Even though there are still some rare sound problems, and I didn't get xine to work with, I like my soundsetup this way. Mixing works fine, KDE/arts integration is smooth, and tools like jamin let you play around at leisure.
Oh and as far as the module itches go - monolithic kernels are supposed to be more secure, better optimized. Reason enough to skip figuring out how those module options are supposed to work |
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