/dev/snd missing

smallpond · 05-09-2012, 12:41 PM

Are ALSA modules loaded? On my box:

Code:

 lsmod |grep snd
snd_hda_codec_idt      63835  1 
snd_hda_intel          32323  2 
snd_hda_codec         102795  2 snd_hda_codec_idt,snd_hda_intel
snd_hwdep              13236  1 snd_hda_codec
snd_seq                54637  0 
snd_seq_device         13817  1 snd_seq
snd_pcm                81170  2 snd_hda_intel,snd_hda_codec
snd_timer              23896  2 snd_seq,snd_pcm
snd                    62853  12 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore              14116  1 snd
snd_page_alloc         13709  2 snd_hda_intel,snd_pcm

agike · 05-09-2012, 10:05 PM

Unfortunately there is no 'snd' in /dev .. see below

adam@(none):/media/10f0bf32-ad08-4970-83fe-47cefbdc78ec/dev$ ls
console initctl loop2 loop6 port ram0 ram12 ram16 ram5 ram9 stdin urandom
core kmem loop3 loop7 ptmx ram1 ram13 ram2 ram6 random stdout xconsole
fd loop0 loop4 mem pts ram10 ram14 ram3 ram7 shm tty zero
full loop1 loop5 null ram ram11 ram15 ram4 ram8 stderr tty0

but 'lsmod | grep snd' seems only relate to the main (or root) drive, rather than the mounted one.

I am also getting the boot msg

"Failed .. startpar, services returned failure, udev, udev-mtab"
suggesting that udev is not populating /dev on boot. I have read that downgrading to udev and libudev0 can bring the system back to normal but am not sure how to do it on a mounted debian drive .. I am playing with text-based recovery mode.

Re. alsa, I have been getting the msg

"Setting up ALSA --done; none loaded"

I have happily been using alsa for some time, but have not yet mastered pulseaudio ..

I read somewhere that I had to disable hotplug to start udev, so did

[root] chmod -x /etc/rc.d/rc.hotplug

but it seemed to change nothing. I don't understand this, now I can't mount a USB drive.

in debian the executable is

[root] chmod +x /etc/RcS.d/S02udev

.. but still no /dev/snd !