USB speakers with Linux: further problems

[Dominic Bonfiglio]

Ok, now I have plugged in my USB speakers, I have entered 'modprobe 
snd-usb-audio' and here is what I get:

*linux:~ # aplay -l*

**** List of PLAYBACK Hardware Devices ****
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 
82801DB-ICH4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 
[Intel 82801DB-ICH4 - IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Speaker [Logitech USB Speaker], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0



*linux:~ # lsmod|grep snd*

snd_usb_audio 75712 0
snd_usb_lib 16384 1 snd_usb_audio
snd_rawmidi 24864 1 snd_usb_lib
snd_hwdep 8992 1 snd_usb_audio
snd_pcm_oss 59168 0
snd_mixer_oss 18944 1 snd_pcm_oss
snd_seq 51984 0
snd_seq_device 8588 2 snd_rawmidi,snd_seq
snd_intel8x0 33504 0
snd_ac97_codec 91004 1 snd_intel8x0
snd_ac97_bus 2432 1 snd_ac97_codec
snd_pcm 93064 4 snd_usb_audio,snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer 24452 2 snd_seq,snd_pcm
snd 60420 12 
snd_usb_audio,snd_usb_lib,snd_rawmidi,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
usbcore 112512 6 snd_usb_audio,snd_usb_lib,usbhid,ehci_hcd,uhci_hcd
soundcore 9184 1 snd
snd_page_alloc 10632 2 snd_intel8x0,snd_pcm



*linux:~ # lsmod|grep audio*
snd_usb_audio 75712 0
snd_usb_lib 16384 1 snd_usb_audio
snd_hwdep 8992 1 snd_usb_audio
snd_pcm 93064 4 snd_usb_audio,snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd 60420 12 
snd_usb_audio,snd_usb_lib,snd_rawmidi,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
usbcore 112512 6 snd_usb_audio,snd_usb_lib,usbhid,ehci_hcd,uhci_hcd


*linux:~ # cat /proc/asound/cards*

0 [I82801DBICH4 ]: ICH4 - Intel 82801DB-ICH4
Intel 82801DB-ICH4 with STAC9750,51 at 0xf0080400, irq 5
1 [Speaker ]: USB-Audio - Logitech USB Speaker
Logitech Logitech USB Speaker at usb-0000:00:1d.0-2, full speed


------

In addition, both Kmix and Kamix recognize the speakers, and in both 
instances PCM is at full blast. But still the speakers don't play.

A further development. I tried setting the xine engine in amarok to 
alsa, which allows you to set the audio output. I thought I could enter 
'hw=1' and solve my problem that way. But now, everytime i try to use 
alsa, I get the warning 'amarok was unable to initialize any 
audio-drivers," and amarok promptly crashes. And when I leave the xine 
engine on "auto detect" mode, I get no sound output at all anymore. 
Amarok now only works using the aRts engine, but in that case the sound 
only comes out of the computers built-in speakers.


Any advice?

Dominic

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