Vladimir Wiedermann wrote:
> I have intel 845 chipset in laptop Compaq Evo N800v (82801CA
> southbridge). I tried to get alsa work with full-duplex. But I failed.
> (single stream operations work fine)
>
> 1. Do this card have support for full duplex ?
> 2. Is there anyone, who is running fullduplex on this card ?

Yes. Me (on an 82801EB).

Please note that "full duplex" means that a card can record and
playback simultaneously, one stream in each direction.

> 3. How can I setup alsa to use more playback (sub)devices ?

The 82801 southbridges don't support hardware mixing, so you have to
use software mixing. You can use the ALSA dmix plugin for this.

> for example mplayer's error:
> $ mplayer xyz -ao alsa9:hw:0.1

Try to use alsa9:plug:dmix instead.


HTH
Clemens




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