Greetings List:
A) start with the details:
I recently had a motherboard upgrade - the old one died a horrible
i/o controller related death.
purchased an ASUS M2N e-SLI - it has dual IDE ports in addition to
the 4 active and 4 hidden sata ports ---- I have a single LV on three
ide drives (yeah -- not bright I know) I has on board a C-Media
Electronics CM6501 usb audio device.
out of the box KDE's artsd cannot find any audio devices despite
being told to use /dev/snd/ devices and /dev/sound/ devices. I've ended
up uplifting the kernel to 2.6.25 and alsa to 1.0.16r2 - rebuilt the
entire kde-meta tree. No joy
built an .asoundrc and away we go = shared output works, amarok
works, artds works, can have wine/artsd/amarok playing nice at the same
time.
what DOES work:
out of box, no asoundrc
amarok and other correctly alsa built apps can play sound one at
a time.
with below asoundrc everything can output sound, but somewhat
irregularly when more than one is playing at a time.
what DOES NOT WORK:
the mic.
if I have NO asoundrc at all the mic works for a single application.
if I have my asounrc in - nothing can open the mic. at all
Wine programs and wine itself complain (no matter what) that there
is no mixer. This makes some things not work well. If I have my
asoundrc in place and have World of Warcraft and ventrilo running in
wine, while listening to amarok
{ no I'm not mildy ADD -- I'm completely and utterly ADD}
the sounds from wine are somewhat unstable. I.e for some time it will
be fine, other times only one or the other app can play - or its
dropping channels of sound ( i can explain in detail but will take too
much turf)
OBJECTIVE:
1st) get mic to work in dsnoop mode.
2nd) fool things like wine into believing in the fairy "mixer"
B) my asoundrc
pcm.card0 {
type hw
card 0
device 0
}
ctl.!default {
type hw
card 0
}
pcm.!default {
type plug
slave.pcm "duplex"
}
pcm.dmixer {
type dmix
ipc_key 1025
ipc_perm 0660
slave.pcm "card0"
slave {
period_time 0
period_size 1024
buffer_size 8192
rate 48000
}
bindings {
0 0
1 1
}
}
pcm.dsnooper {
type dsnoop
ipc_key 1027 # must be unique for all dmix plugins!!!!
ipc_perm 0660
slave {
pcm "card0"
period_time 0
# period_size 1024
# buffer_size 8192
}
bindings {
0 0
1 1
}
}
pcm.duplex{
type asym
playback.pcm "dmixer"
capture.pcm "dsnooper"
}
C) The system
Gentoo box ~amd64
2.6.25-gentoo-r5iommuin
Module Size Used by
bnep 11776 2
rfcomm 34848 4
l2cap 20864 12 bnep,rfcomm
nvidia 8100176 24
hci_usb 14940 2
snd_usb_audio 88512 2
snd_pcm 71368 1 snd_usb_audio
snd_timer 20432 1 snd_pcm
snd_page_alloc 8528 1 snd_pcm
snd_usb_lib 15936 1 snd_usb_audio
snd_rawmidi 21120 1 snd_usb_lib
snd_seq_device 7252 1 snd_rawmidi
snd_hwdep 8200 1 snd_usb_audio
snd 53128 10
snd_usb_audio,snd_pcm,snd_timer,snd_rawmidi,snd_seq_device,snd_hwdep
i2c_nforce2 7040 0
i2c_core 20512 2 nvidia,i2c_nforce2
dm_bbr 10624 0
tg3 107588 0
e1000 114240 0
sbp2 21580 0
ohci1394 28660 0
ieee1394 81400 2 sbp2,ohci1394
cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.16rc2 (Thu Jan 31
16:40:16 2008 UTC).
{{{ first device is onboard second device is Logitech Webcam }}}
~ $ cat /proc/asound/cards
0 [default ]: USB-Audio - PnP Audio Device
PnP Audio Device at usb-0000:00:02.0-7,
full speed
1 [U0x46d0x8b5 ]: USB-Audio - USB Device 0x46d:0x8b5
USB Device 0x46d:0x8b5 at usb-0000:00:02.0-4, full
speed
~ $ cat /proc/asound/devices
2: : timer
3: [ 1- 0]: digital audio capture
4: [ 1] : control
5: [ 0- 0]: digital audio playback
6: [ 0- 0]: digital audio capture
7: [ 0] : control
~ $ more /etc/modprobe.conf |grep snd
alias char-major-10-116 snd
alias char-major-116-* snd
alias snd-card-0 snd-usb-audio
alias snd-card-1 snd-usb-audio
alias sound-slot-0 snd-usb-audio
alias sound-slot-1 snd-usb-audio
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-12 snd-pcm-oss
alias /dev/mixer snd-mixer-oss
alias /dev/dsp snd-pcm-oss
alias /dev/midi snd-seq-oss
options snd cards_limit=3
options snd-usb-audio index=0,1 vid=0x0d8c,0x046d pid=0x0201,0x08b5
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