[alsa-devel] HD-audio regression after commit 34588709af61be1550b4e2bcee5c85d0ac4f34d4

[Takashi Iwai]

At Mon, 21 Jan 2013 14:11:47 -0500,
Miro Hodak wrote:
> 
> [1  <text/plain; ISO-8859-1 (7bit)>]
> On Mon, Jan 21, 2013 at 12:44 PM, Miro Hodak <mhodak127 at gmail.com> wrote:
> 
> >
> >
> > On Mon, Jan 21, 2013 at 12:29 PM, Takashi Iwai <tiwai at suse.de> wrote:
> >
> >> At Mon, 21 Jan 2013 12:08:13 -0500,
> >> Miro Hodak wrote:
> >> >
> >> > On Mon, Jan 21, 2013 at 4:18 AM, Raymond Yau <
> >> superquad.vortex2 at gmail.com>wrote:
> >> >
> >> > >
> >> > > > I have been playing with Independent HP feature and while I can get
> >> it
> >> > > to work in aplay and mplayer, it does not seem to work on vlc and
> >> Skype.
> >> > > Both applications seem to have options for sending sound to HPs
> >> ("AD1989B
> >> > > Analog Front Speakers" or "AD1989B Analog (hw: 0,2)" - Skype only),
> >> but
> >> > > none of those options sends sound to the HPs. Any thoughts on this?
> >> > >
> >> > > Because the driver should not allow user to change the independent
> >> > > headphone switch when there is any playing stream
> >> > >
> >> > The Independent HP switch is on before starting these apps (vlc and
> >> Skype).
> >>
> >> Maybe it's because you set it beforehand?
> >> The previous mixer state is restored usually upon login or reboot.
> >>
> >>
> >> Takashi
> >>
> >
> > Well, I verify that the Independent  HP mode works  just before trying
> > these applications so mixer should be in correct state.
> >
> 
> Actually, it works fine in Skype when using "AD1989B Analog (hw: 0,2)". I
> was confused because I changed only "Speakers" to that device and tried
> making a test sound. That did not work, apparently test sound goes to
> whatever "Ringing" is set to. But when making actual calls, it works as
> expected and I can take advantage of the Independent HP feature.

Hm, there should be nothing to touch the indep-HP mixer control from
PCM, so I have no idea why it went wrong.

BTW, I guess we have still an issue regarding indep HP.  When it's ON,
should the auto-mute be disabled, no?
Although one can disable the automute manually, it'd be maybe more
user-friendly if the driver does it by itself.

The necessary change would be likely trivial, so I'm going to
implement it tomorrow.


Takashi