[linux-audio-user] Two sound cards - module loading and signal routing

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Subject: [linux-audio-user] Two sound cards - module loading and signal routing
From: Kevin Cosgrove (kevinc_AT_doink.com)
Date: Tue Dec 07 2004 - 02:42:49 EET


Two questions...

First, I've got two sound cards in my system:

    ICH4 845G/GL Chipset AC'97 Audio Controller
        0 [I82801DBICH4 ]: ICH - Intel 82801DB-ICH4
                     Intel 82801DB-ICH4 at 0xffaff800, irq 17
        Module: snd-intel8x0

    Sound Blaster AudioPCI64V/AudioPCI128
        1 [AudioPCI ]: ENS1371 - Ensoniq AudioPCI
                     Ensoniq AudioPCI ENS1371 at 0xdc00, irq 18
        Module: snd-ens1371

The first "sound card", number 0, is on the motherboard. I can't
get it to load as card number 1. /etc/modules.conf makes no
difference in this regard. "snd-card-0" and "sound-slot-0" seem
to be ignored. I've tried lots of variants in modules.conf to get
this to work, and tried various orders. Here's a simple case:

alias snd-card-1 snd-intel8x0
alias snd-card-0 snd-ens1371

Is there a way to get this to work?

My second question might be related to the first. If I disable
the on-board sound card, then all but one sound related thing
works for me. Audio in/out works, MIDI in/out works, speakers
work. Playing a CD does not produce sound no matter what the
application (cdp, Kscd, xmcd). If I enable the on-board sound,
then I can play CDs fine, but the output comes out of the
on-board sound card. I'd like to reroute the CD sound to come
out of the SoundBlaster PCI sound card. How can I do this?

Thanks....

FWIW, my loaded sound related modules are these:

snd-seq-midi 6176 0
snd-seq-oss 27648 0
snd-seq-midi-event 4480 2 snd-seq-midi,snd-seq-oss
snd-seq 40592 5 snd-seq-midi,snd-seq-oss,snd-seq-midi-event
snd-ens1371 17508 0
snd-pcm-oss 45992 0
snd-mixer-oss 16384 1 snd-pcm-oss
snd-intel8x0 26572 0
snd-ac97-codec 57936 2 snd-ens1371,snd-intel8x0
snd-pcm 68360 3 snd-ens1371,snd-pcm-oss,snd-intel8x0
snd-timer 19204 2 snd-seq,snd-pcm
snd-page-alloc 6408 2 snd-intel8x0,snd-pcm
gameport 2176 2 snd-ens1371,snd-intel8x0
snd-mpu401-uart 5504 1 snd-intel8x0
snd-rawmidi 17700 3 snd-seq-midi,snd-ens1371,snd-mpu401-uart
snd-seq-device 5640 4 snd-seq-midi,snd-seq-oss,snd-seq,snd-rawmidi
snd 38244 12 snd-seq-oss,snd-seq,snd-ens1371,snd-pcm-oss,\
                                snd-mixer-oss,snd-intel8x0,snd-ac97-codec,\
                                snd-pcm,snd-timer,snd-mpu401-uart,snd-rawmidi,\
                                snd-seq-device
soundcore 6112 2 snd,bttv
 

--
Kevin


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