From: Raymond Yau <superquad.vortex2@gmail.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: VIA VT1708 bugs
Date: Mon, 21 Mar 2011 14:56:18 +0800 [thread overview]
Message-ID: <AANLkTimQGDYWF1-1n1fXruNvAmKY6b1xHNcwmAFe3scG@mail.gmail.com> (raw)
>> *Independent* headphone
>>
>> http://www.viaarena.com/forums/showthread.p*hp*?t=41015 <http://www.viaarena.com/forums/showthread.php?t=41015>
>Ok, that makes some sense. It translates to me as
>* With *independent* *HP* turned off - activates auto-mute between
>speaker-out/line-out and headphone out. Note the difference between VIA
>and Realtek/Sigmatel here as line-out are auto-muted as well.
>* With *independent* *HP* turned on - headphone out and speaker-out/line-out
>should take output from different PCM subdevices.
Practically, it is more complex than the above since the desktop
motherboard can have 3 , 5 or 6 audio jacks at rear panel
since those hda codecs only have 8 channels instead of 10
Enable Independent HP on a 6stack model should decrease
spec->mult_out.max_channels from 8 to 6 for subdevice 0
For 5 jacks model , the driver need to retask blue jack as side only
when independent HP switch is off
To support 8 channels for a 3stack model need to retask the front HP as side
next reply other threads:[~2011-03-21 6:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-21 6:56 Raymond Yau [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-01-04 6:46 VIA VT1708 bugs David Henningsson
2011-01-04 7:43 ` Raymond Yau
2011-01-04 9:21 ` David Henningsson
2011-01-04 14:15 ` Raymond Yau
2011-01-04 23:32 ` Raymond Yau
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