Hi!
I'm very much interested in that issue, too. I had the same problem,
having "PCM not usable" errors on some setups I tried. I finally gave up
thinking that it just can't be done. Hoping that it will be possible one
day, I filed a feature request. Maybe you could add a comment to show,
that I'm not the only one desiring such a feature. If you should find a
way how to do it with the current versions, please tell me how! Thanks
in advance.
Greets, Ingo
Nicolas George schrieb:
> Hi.
>
> Consider the following .asoundrc:
>
> pcm.mixer {
> type dmix
> ipc_key 1024
> slave {
> pcm {
> type hw
> card 0
> }
> period_time 0
> period_size 1024
> buffer_size 32768
> rate 48000
> }
> bindings {
> 0 0
> 1 1
> }
> }
>
> pcm.multi {
> type multi
> slaves {
> a {
> pcm "mixer"
> channels 2
> }
> }
> bindings {
> 0 { slave a channel 0 }
> 1 { slave a channel 1 }
> }
> }
>
> Obviously the multi plugin is useless here, but it is a minimal test case
> for a problem I had with a real situation.
>
> If I play something through the mixer PCM, I get sound all right. But if I
> send it through the multi PCM, I only get silence. Changing "mixer" to
> "hw:0" gets the sound back, but loses the mixer.
>
> It is true with libasound 1.0.12 and .13 from Debian on two different
> systems.
>
> Does anyone see what I am doing wrong?
>
>
> Regards,
>
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