Re: multi-seat sound [again]: anybody actually doing it?

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

> Hugo Vanwoerkom wrote:
> >--- ludovic pollet <pl...@nn...> wrote:
> >
> > =A0
> >
> >>Hello,
> >>
> >>For most alsa application, correctly setting the
> >>following environment
> >>variable will do the trick :
> >>
> >>ALSA_CARD=3D1
> >>ALSA_CTL_CARD=3D1
> >>ALSA_PCM_CARD=3D1
> >>
> >>You can force SDL games to use alsa with :
> >>
> >>SDL_AUDIODRIVER=3Dalsa
> >>
> >>
> >>But applications which use the OSS API will cause
> >>problems (mozilla plugins,
> >>openoffice, old games, ...)
> >>
> >>For those, you will need to make the device entries
> >>point to different files
> >>depending on the DISPLAY : I do that at home. Have a
> >>look at
> >>http://www.nnx.com/~pludov/sessiond/

SDL driver is one , which have hardcoded
/dev/sound/dsp
Please use Ludovic recomendations. Create a user login
script:
SDL_AUDIODRIVER=3D"oss"
AUDIODEVICE=3D"/dev/dsp"
export $SDL_AUDIODRIVER $AUDIODEVICE

I am not udev expert, but that /dev/sound is artifical,
created by udev config scripts - so is _not_ forced
to create /dev/sound at all. Edit udev scripts and You
have dspXX where You want. Under Mandriva edit
/etc/udev/rules.d/50-mdk.rules

=46or appliaction , which does suspicious things
# strace -oapp.log application-bin
Analyze app.log or simpler method
# strings application-bin | grep dsp
or
# strings lib-plugin.so | grep dsp

Aivils