snd_hda: how to duplicate output
serguey-grigoriev at yandex.ru
Mon Sep 27 18:06:59 UTC 2010
Alexander Motin wrote:
> S.N.Grigoriev wrote:
> > this is an exerpt from 8.1R detailed Release Notes:
> > 18.104.22.168 Multimedia Support
> > [snipped]
> > The snd_hda(4) driver now supports multichannel (4.0 and 7.1)
> > playback support. The 5.1 mode support is disabled now due to
> > unidentified synchronization problem. Devices which supports
> > the 7.1 mode can handle the 5.1 operation via software upmix
> > done by sound(4). Note that stereo stream is no longer duplicated
> > to all ports.
> > I'm interesting in what way can I restore the old behaviour, when
> > stereo stream is duplicated to the black and grey sound card
> > output connectors?
> The only way is to change channel mapping (chmap array) for stereo
> streams in hdac_stream_setup() function.
thank you for your responce.
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