[alsa-devel] VIA VT1708 bugs

[Raymond Yau]

2011/1/4 David Henningsson <david.henningsson at canonical.com>

>
>
> 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.
>

The point is using ac97 front panel connector does not allow you to know
whether the headphone plugged in , the presence of headphone is only know
when you are using HDA front panel and HDA codec. so line-out of a desktop
is usually not auto muted

http://www.intel.com/support/motherboards/desktop/sb/cs-020642.htm