On Tue, Oct 16, 2007 at 01:38:34PM +0200, Takashi Iwai wrote:
> At Mon, 15 Oct 2007 16:34:21 -0400,
> Peter Skensved wrote:
> >
> > On Mon, Oct 15, 2007 at 01:29:50PM +0200, Takashi Iwai wrote:
> > > At Sun, 14 Oct 2007 22:53:03 -0400,
> > > Peter Skensved wrote:
> > > >
> > > > Hi,
> > > > I've come across a problem with the 1.0.15rc3 alsa driver on my Lenovo 3000 N100 laptop using
> > > > the auto mute feature - it appears to work backwards ! Plugging in the headphones unmutes the
> > > > external speakers and unplugging the heaphones mutes them ...
> > > >
> > > > Changing the if statement in line ~600 in patch_analog.c in ad1986a_update_hp to
> > > >
> > > > if (!spec->jack_preset)
> > > >
> > > > makes it work the intended way. ( spec->jack_present changes state _before_ the call to
> > > > ad1986a_hp_automute )
> > >
> > > Hmm, the code logic looks correct to me. If HP jack is present, the
> > > internal speaker should be muted. Otherwise it follows the state of
> > > HP jack (muted/unmuted, that acts as a master switch).
> > >
> >
> > Well - in the default mode the jack is present and the internal speakers are permanently
> > muted until I plug in a set of headphones no matter how I toggle the speaker mute in the mixer.
> >
> > With headphones plugged in I can mute and unmute the internal speakers in alsa mixer
> >
> >
> > Surely the default cannot be that I have to carry a set of headphones with my
> > laptop all the time ???!!???
> >
> >
> > > Is jack_present set/reset correctly when HP jack is plugged/unplugged
> > > at all? Or, the pin NID is swapped, or any other reason?
> > >
> >
> > I sprinkled some printk's in the driver :
> > On entry to ad1986a_update_hp : plugging headphones into jack : spec->jack_present = 0
> > removing headphones from jack : spec->jack_present = 1
>
> This implies rather that the jack detection itself is reversed from
> the standard. Could you try the patch below?
>
>
> thanks,
>
> Takashi
>
It works -
peter
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