[PlanetCCRMA] jackd and two Delta1010 cards

[Bob Wilkinson]

uname -r
2.6.12-0.21.rdt.rhfc4.ccrma

rpm -q -a|grep kernel-module-alsa
kernel-module-alsa-2.6.12-0.21.rdt.rhfc4.ccrma-1.0.9b-1.rhfc4.ccrma


 -------------- Original message ----------------------
From: Fernando Lopez-Lezcano <nando at ccrma.Stanford.EDU>
> On Mon, 2006-07-03 at 18:17 +0000, Bob Wilkinson wrote:
> > Hopefully someone can help me on this.  I have installed Planet CCRMA 
> > from an FC4 installation.  I am using two Delta1010 sound devices, and 
> > am trying to get them to act as one big device.
> > 
> > I have searched the web, and found an .asoundrc file (I actually wrote 
> > it to /etc/asound.conf) to create the "virtual" card (binding the two 
> > cards together).  My asound.conf file looks like this:
> > 
> > pcm.multi_capture {
> >         type multi
> >         slaves.a.pcm hw:0
> >         slaves.a.channels 12
> >         slaves.b.pcm hw:1
> >         slaves.b.channels 12
> [MUNCH]
> > 
> > However, when I attempt to run JACK from a command line,
> > 
> > jackd -d alsa -C multi_capture -P multi_playback
> > 
> >  I get the error:
> > 
> > ALSA: mmap-based access is not possible for the capture stream of this audio 
> interface
> > ALSA: cannot configure capture channel
> > 
> > I have tried just starting jack for multi_playback only - same error, just 
> replaced 
> > with "playback".
> > 
> > Unfortunately, I'm a complete newbie, and now have less than a week before 
> > my company expects this thing to be up and running flawlessly.
> > 
> > Can anybody help?  What am I missing?
> 
> Which kernel/alsa are you running? Run:
>   uname -r
> to see which kernel you are booting. There should be a matching
> kernel-module-alsa package for it ("rpm -q -a|grep kernel-module-alsa")
> 
> I seem to remember that alsa had problems with this type of stuff. I
> also seem to remember a post about this being solved but I don't
> remember on which version. 
> 
> -- Fernando
> 
> 
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