[mythtv-users] ALSA and .asoundrc help

[David W Davis]

So I am attempting to get the SPDIF working on my nforce2 mb.  I
followed the mythtv.info tutorial and created my .asoundrc.  When I
run aplay -l I get:
**** List of PLAYBACK Hardware Devices ****
card 0: M410 [M Audio Delta 410], device 0: ICE1712 multi [ICE1712 multi]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: nForce2 [NVidia nForce2], device 0: Intel ICH [NVidia nForce2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: nForce2 [NVidia nForce2], device 2: Intel ICH - IEC958 [NVidia
nForce2 - IEC958]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
This leads me to edit all references of card 0 to card 1 in my
.asoundrc.  I can successfully run aplay -D default, but don't hear
anything.  When I attempt to run aplay -D mixed-digital (or anything
else) I get the error :
ALSA lib pcm.c:1975:(snd_pcm_open_noupdate) Unknown PCM mixed-digital
aplay: main:508: audio open error: No such file or directory
I can play mp3s with XMMS using the ALSA output plugin configured to
the default device.  I hear output doing this, but have had mp3s
randomly stop playing (not sure if that is an XMMS or file issue).  So
I am not getting any sound in MythTV regardless of what the output is
selected.  Anyone have any ideas or places I should look?  Here is my
.asoundrc:
# Override the default output used by ALSA.
# If you do not override the default, your default
# device is identical to the (unmixed) analog device
# shown below.  If you prefer mixed and/or digital
# output, uncomment the appropriate four lines below
# (only one slave.pcm line).
pcm.!default {
  type plug
## Uncomment the following to use mixed analog by default
#  slave.pcm "dmix-analog"
## Uncomment the following to use unmixed digital by default
#  slave.pcm "digital-hw"
## Uncomment the following to use mixed digital by default
  slave.pcm "dmix-digital"
}

# Alias for analog output on the nForce2 (hw:0,0)
# - This is identical to the device named "default"--which
# always exists and refers to hw:0,0 (unless overridden)
# - Therefore, we can specify "hw:0,0", "default", or "analog"
# to access analog output on the nForce2
pcm.analog {
 type plug
 slave.pcm "analog-hw"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.analog {
 type hw
 card 1 #0
}

# Alias for (rate-converted) mixed analog output on the
# nForce2 (hw:0,0)
#  - This will accept audio input--regardless of rate--and
# convert to the rate required for the dmix plugin
# (in this case 48000Hz)
pcm.mixed-analog {
 type plug
 slave.pcm "dmix-analog"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-analog {
 type hw
 card 1 #0
}

# Alias for (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
#  - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.digital {
 type plug
 slave.pcm "digital-hw"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.digital {
 type hw
 card 1 #0
}

# Alias for mixed (rate-converted) digital (S/PDIF) output on the
# nForce2 (hw:0,2)
#  - This will accept audio input--regardless of rate--and
# convert to the rate required for the S/PDIF hardware
# (in this case 48000Hz)
pcm.mixed-digital {
 type plug
 slave.pcm "dmix-digital"
}

# Control device (mixer, etc.) for the nForce2 card
ctl.mixed-digital {
 type hw
 card 1 #0
}

# The following devices are not useful by themselves.  They
# require specific rates, channels, and formats.  Therefore,
# you probably do not want to use them directly.  Instead use
# of of the devices defined above.

# Alias for analog output on the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.analog-hw {
 type hw
 card 1 #0
 # The default value for device is 0, so no need to specify
}

# Control device (mixer, etc.) for the nForce2 card
ctl.analog-hw {
 type hw
 card 1 #0
}

# Alias for digital (S/PDIF) output on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.digital-hw {
 type hw
 card 1 #0
 device 2
}

# Control device (mixer, etc.) for the nForce2 card
ctl.digital-hw {
 type hw
 card 1 #0
}

# Direct software mixing plugin for analog output on
# the nForce2 (hw:0,0)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-analog {
 type dmix
 ipc_key 1234
 slave {
   pcm "analog-hw"
   period_time 0
   period_size 1024
   buffer_size 4096
   rate 48000
 }
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-analog {
 type hw
 card 1 #0
}

# Direct software mixing plugin for digital (S/PDIF) output
# on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-digital {
 type dmix
 ipc_key 1235
 slave {
   pcm "digital-hw"
   period_time 0
   period_size 1024
   buffer_size 4096
   rate 48000
 }
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-analog {
 type hw
 card 1 #0
}

# Direct software mixing plugin for digital (S/PDIF) output
# on the nForce2 (hw:0,2)
# Do not use this directly--it requires specific rate,
# channels, and format
pcm.dmix-digital {
 type dmix
 ipc_key 1235
 slave {
   pcm "digital-hw"
   period_time 0
   period_size 1024
   buffer_size 4096
   rate 48000
 }
}

# Control device (mixer, etc.) for the nForce2 card
ctl.dmix-digital {
 type hw
 card 1 #0
}

Thanks.