[Bug 129004] Re: USB sound only partially works after upgrade from dapper drake to edgy eft and feisty fawn

[wired00]

is this fix pre asoundconf?

ie are the changes above to ~/.asoundrc to add
pcm.!default {
type hw
card 1
}

ctl.!default {
type hw
card 1
}

the precursor to just using:
asoundconf set-default-card 
?

-- 
USB sound only partially works after upgrade from dapper drake to edgy eft and 
feisty fawn
https://bugs.launchpad.net/bugs/129004
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[Bug 93922] Re: external sound card (USB) is not detected most of the time

[wired00]

this is wierd...

so i just rebooted and only plugged in my usb dac after the system had
started... i plugged the usb dac in loaded amarok, and it worked
perfectly :/

as expected it displays as device "1" from sndstat and aplay -l

strange... i don't know what causes it to sometimes not work, but it
seems exactly like the OP's problem. I'll post back details from sndstat
aplay -l etc if it stops working again

-- 
external sound card (USB) is not detected most of the time
https://bugs.launchpad.net/bugs/93922
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[Bug 93922] Re: external sound card (USB) is not detected most of the time

[wired00]

Hi i think im having a similar issue with my External USB headphone
DAC/AMP. Its a iBasso D2 headphone amp. (www.iBasso.com).

Hopefully i can help solve this too?

I have the same issues... running ubuntu 8.04 and gnome.

When i connect to my Toshiba A200 laptop it will sometimes work under
amarok/Exaile/Audacious and sometimes not. I connect and can hear system
sounds through the external DAC and can see the device via Volume
Control > File > Change Device but when i play via Amarok using ALSA the
sound only plays via the internal laptop sound card / speakers.

I try:
1) unplug usb sound card, close amarok, plug in USB sound card again, open 
amarok ... no sound
2) try changing to another sound player (auto/pulseaudio/OSS) via amarok then 
back to ALSA and still nothing.

if i run the following line mp3 plays perfectly through xine even though it 
won't play via any media players:
xine -A alsa --verbose=1 /home/blah/test.mp3

I don't understand why xine works perfectly but other media players
don't? i thought especially that amarok used xine for playback??

One thing i did notice is that the device order under Volume Control >
File > Change Device changes. ie when its not working, the USB device
appears as "1: USB Audio DAC (ALSA Mixer)" but when it IS working ie,
now, it appears as "0: USB Audio DAC (ALSA Mixer)". Is this relevant?

Do you think it relates to whether my USB device is 0 or 1? how do i change 
this after my laptop is booted so i don't need to reboot?
here is results running sndstat while the device is running if it helps?:

tail -2 /proc/asound/oss/sndstat
0: USB Mixer
1: Realtek ALC268

Also heres aplay -l output incase it helps:
 aplay -l
 List of PLAYBACK Hardware Devices 
card 0: default [USB Audio DAC   ], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
  Subdevices: 1/1

i'll try rebooting in a sec and see if it does infact change so that my
USB device is "1" and not work.

-- 
external sound card (USB) is not detected most of the time
https://bugs.launchpad.net/bugs/93922
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