freebsd-multimedia

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Re: snd_hda: ALC888/1200 and mixer empty Alexander Motin Wed Jun 17 06:00:52 2009

Alexander Motin wrote:
> martinko wrote:
>> Indeed, default is HDMI which I changed to Toslink.  But only analog
>> (pcm1 and pcm2) have mixers.  This is problem with applications that
>> complain they cannot find mixer.  What can I do about it ?
>>
>> And more general -- I know FreeBSD have virtual channels and thus it
>> can mix various sources and even convert sample rates.  But can it
>> control volume of channels, both virtual and real/hw ?
>> I sort of understand that now digital output provides no volume
>> control and I can easily manage that with my amplifier.  But in
>> Windows I _can_ control volume even when I use digital output.
> 
> Vchans is able to control volume in software when there lack of hardware
> support, but it breaks AC3 stream pass-though. So choosing between them
> I have blocked software volume control in driver manually for digital
> connectors. To get it back you may in hdac.c change line
>     if (pdevinfo->play >= 0 && !pdevinfo->digital) {
> to
>     if (pdevinfo->play >= 0) {
> May be last changes in 8-CURRENT will allow them coexist, but not for 7.2.

By the way. xmms and mplayer, I am using daily, perfectly work with
empty mixer.

-- 
Alexander Motin
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