[pulseaudio-discuss] Pulseaudio and USB sound device M-Audio Audiophile USB

[Stephan Seitz]

Hi!

Hardware:
- M-Audio Audiophile USB connected via S/PDIF (audio out) with my 
   receiver

Software:
- Debian/Testing
- Self made 2.6.30 kernel
- Pulseaudio 0.9.15-2

Problem (short):
No digital sound with the standard pulseaudio configuration (USB device 
detected by HAL)

Problem (long):
If I start pulseaudio with the standard configuration, I can use the 
onboard soundcard of my notebook without problems. If I connect the USB 
sound device, the new device is detected and pavucontrol shows me the new 
device together with configuration options. But whatever configuration 
option I choose there is no digital signal to my receiver (I can’t test 
with analog sound in the moment). In this case I’m using no options to 
the snd-usb-audio kernel module.

According to linux/Documentation/sound/alsa/Audiophile-Usb.txt I tried it 
with the module options „device_setup=0x01 nrpacks=1”. Now pavucontrol 
shows *two* Audiophile USB devices, but none give a digital signal.

To make it work I have to edit default.pa and insert the following lines:
# onboard
load-module module-alsa-sink device=hw:0,0 sink_name=output_intern
# audiophile usb
load-module module-alsa-sink device=hw:1,1 sink_name=output_digital
set-default-sink output_digital

Now I get sound via the digital output, but I have other problems:

- pulseaudio won’t start without the connected Audiophile USB device.
- pulseaudio stops working and crashes after a time if the USB device is 
   disconnected.

So what can I do to configure pulseaudio in a way, that it can play 
digital output via the USB device but is able to survice the 
connect/disconnect situation?

Thanks for your help!

Shade and sweet water!

	Stephan

-- 
| Stephan Seitz             E-Mail: stse at fsing.rootsland.net |
| PGP Public Keys: http://fsing.rootsland.net/~stse/pgp.html |
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