[alsa-devel] HDA regression on Fujitsu S7020 laptop (ALC260 codec)

Raymond Yau superquad.vortex2 at gmail.com
Mon Feb 18 13:58:28 CET 2013

> > > To confirm the behaviour: the "Headphone Jack Mode" control appears in
> > > 3.8.0-rc5+ but a corresponding control for the mic/line-in jack does
> >
> > Ah, I see.  This doesn't appear as default.  You need to pass a hint
> > string in the firmware patch file.  See a brief description in
> > Documentation/sound/alsa/HD-Audio.txt.
> Right.  I'll take a look at this documentation.  I must say that it
> me as a little odd that input jacks don't have a mode control by default.
> would have expected that such controls would be desired by enough people
> justify having them appear by default without each user having to mess
> around with firmware patch files and the like.
> I assume the magic knob is add_in_jack_modes.
> Is there any reason why alc260_fixup_fsc_s7020() couldn't set
> spec->gen.add_in_jack_modes to 1 in the HDA_FIXUP_ACT_PRE_PROBE phase much
> like it already sets add_out_jack_modes?

Is it possible to add spec->gen.add_in_jack_modes automatically when
automic is disabled and there is no line in jack

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