Re: Assigning sound card to specific X display

[Aivils <ai...@un...>]

On Thursday 02 June 2005 04:27, Ken McCord wrote:
> I'm running a dual-head setup using Debian unstable + the x.org packages
> from Ubuntu.  I have two sound cards, and I'd like to assign each of
> them
> to a specific X display.  How can I do this?
> 
> The first sound card is /dev/dsp and the second is /dev/dsp1.  I want
> display :0 to use /dev/dsp and display :1 to use /dev/dsp1.
>
> I've tried the instructions available at
> http://howtos.linux.com/howtos/XFree-Local-multi-user-HOWTO/automation_multy_snd-cards.shtml
> but I haven't been able to get them to work with gdm/Gnome.
Under Linux access to sound subsystem  is little chaotic.
Any application use hers own sound driver.

Try out set up artsd under KDE or esd under GNOME . 

Even if these software sound mixers like artsd or esd runs
properly, then You cannot disable Java and Flash Player,
which uses sound device directly.
I open Java binary with hexedit and manulay replace
/dev/dsp with fake non-existing device file for silence.

Old samples
http://www.ltn.lv/~aivils/eng-down-mdk91.html
startkde copy necessary kcmartsrc into user directory,
and so each KDE "display" have sound.

Aivils