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

[vinu <vi...@hc...>]

Hugo Vanwoerkom wrote:

>--- ludovic pollet <pl...@nn...> wrote:
>
>  
>
>>Hello,
>>
>>For most alsa application, correctly setting the
>>following environment 
>>variable will do the trick :
>>
>>ALSA_CARD=1
>>ALSA_CTL_CARD=1
>>ALSA_PCM_CARD=1
>>
>>You can force SDL games to use alsa with :
>>
>>SDL_AUDIODRIVER=alsa
>>
>>
>>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/
>>
>>    
>>
>
>Indeed, I saw your page, good job!
>
>Did you write sessiond?
>
>Thanks!
>
>Hugo
>
>
>
>
>
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A few months ago i had made a similar setup, but with shell script only, 
but i used an alsa imulation of oss, and was working fine. after some 
times i tried with the flash plugin for firefox, but wat happened is 
only if v play some sound apps, using firefox, only one user can use it. 
the other users will not b able to use the sound device, whatever be the 
mapping. So we just tracked the working of the plugin and foundout that 
it's creating a lock on the /tmp device which v cannot remove. So what v 
had done is on each session creation the /tmp will be mounted locally 
and do a chroot, so the flash plugin will think that this is another tmp 
and and works happily. But this method is having many security and 
relaibilty issues,and also this setup higly affects the speed. Actually 
v were working on a 6 terminal environment, so the insteability 
increases as each user logged in. Is there some way to fix this?
regards
    vineesh