[Pkg-alsa-devel] Bug#614113: alsa-base: alsa accepts cards names in /usr/share/alsa/alsa.conf but wants only numbers in /etc/alsa.conf

Elimar Riesebieter riesebie at lxtec.de
Sun Feb 20 17:45:33 UTC 2011


* sergey [110220 20:34 +0300]:
> > Please post the output of
> > $lsmod | grep snd
> 
> Here it is:
> -----------------------------------
> snd_hda_codec_atihdmi     3028  1 
> snd_intel8x0           26584  1 
> snd_hda_intel          22192  0 
> snd_ac97_codec         91264  1 snd_intel8x0
> snd_hda_codec          63596  2 snd_hda_codec_atihdmi,snd_hda_intel
> ac97_bus                1456  1 snd_ac97_codec
> snd_hwdep               6120  1 snd_hda_codec
> snd_pcm_oss            32232  0 
> snd_mixer_oss          12368  1 snd_pcm_oss
> snd_pcm                62416  5 snd_intel8x0,snd_hda_intel,snd_ac97_codec,snd_hda_codec,snd_pcm_oss
> snd_seq_midi            5688  0 
> snd_rawmidi            18596  1 snd_seq_midi
> snd_seq_midi_event      6212  1 snd_seq_midi
> snd_seq                42304  2 snd_seq_midi,snd_seq_midi_event
> snd_timer              17460  2 snd_pcm,snd_seq
> snd_seq_device          6136  3 snd_seq_midi,snd_rawmidi,snd_seq
> snd                    49028  14 snd_intel8x0,snd_hda_intel,snd_ac97_codec,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
> soundcore               6184  1 snd
> snd_page_alloc          8116  3 snd_intel8x0,snd_hda_intel,snd_pcm
> -----------------------------------
> 
> > > 1) How to determine what modules corresponds to real sound cards,
> > > not for various software things?
> > 
> > $ modinfo snd_<whatever you see>
> 
> This can give some hint for human, but not for a program.
> 
> It seems that existence of /sys/module/<module name>/drivers
> directory can be sign of real sound device. For example, in my
> system only 2 sound modules have this directory:
> snd_hda_intel and snd_intel_8x0.

Right.

So which one do you want to use as the default?

> Various software things such as snd_pcm or snd_ac97_codec have no this 
> directory on my system.
> 
> > > 2) When we know modules - how to get descriptions of corresponding
> > > sound devices?
> > 
> > In your case:
> > $ modinfo snd_intel8x0
>  
> $ /sbin/modinfo snd_intel8x0 :-)

/sbin should be in $PATH of root so modinfo dows the job ;-)


-- 
  Do you smell something burning or ist it me?
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