Re: Assigning sound card to X display

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

On Otrdiena, 9. Augusts 2005 03:04, ludovic pollet wrote:
> Hello,
>
> I adressed the sound card issue with multiple X display.
>
> It is a little filesystem for fuse (http://fuse.sourceforge.net/).
> Basically, it provides a symlink which depends on the DISPLAY environment
> variable.
>
> When a process will open /dev/dsp, the symlink will resolve depending on
> the DISPLAY variable of the process. From there, it is easy to make process
> on first display open the first dsp, and so on...
>
> This should works for any program using OSS (this covers most unfriendly
> ones, like Mozilla plugin, OpenOffice or vmware, ...), or ALSA in emulation
> mode (for native mode, alsalib is our friend :-).
>
> Source and binary are available at http://www.nnx.com/~pludov/sessiond/
> It should work out of the box for Fedora core 3, (with fuse installed)...
>
> Any feedback is welcome !

That runs very nice under Mandriva 2005LE, 2.4.31-bruby , fuse-2.3.0, 3 sound 
cards 2 of them is oss and 1 is alsa. However games use /dev/sound/dsp. I add 
additional script in /etc/profile.d , which set up SDL and OpenAL sound 
libraries.

sound.sh

#SDL
SDL_PATH_DSP="/dev/dsp"
#SDL_AUDIODRIVER="oss"
export SDL_PATH_DSP

#OpenAL
echo '(define lin-dsp-path "/dev/dsp")' > $HOME/.openalrc


sessiond startup scrip deletes /dev/dsp* stuff and creates links from
/dev/sound/* , /dev/dsp* to /var/sessions/* . devfs is in use.

Aivils Stoss