[alsa-devel] [ALC668]: Asus N751JK - Incorrect default pin assignment for external base speaker and external microphone not working

[Raymond Yau]

>
> "hdajacksensetest -a" gives
>
> Pin 0x05 ( Digital Out, HDMI): present = No
> Pin 0x06 ( Digital Out, HDMI): present = No
> Pin 0x07 (Not connected): present = No
>
> which is a bit of a surprise to me, since at least the headphones (of the
headset I plugin) has working jack detection. I would expect to see at
least to have 1 non-HDMI pin connected.

You need to specify card number

hdajacksensetest -c1 -a

If the external subwoofer can be detected with other unconnected pin
complex instead of node 0x1a jack sense, you need to call
snd_hda_jack_add_kctl in your fixup

snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
  const char *name)

>
> ----
>
> > Can user giveup some combo jack capability (remove the support of
headphone and mic jack and only support headset ) by early patching to
reenable auto mic selection ?
>
> To this I don't know the answer.
>
> An image of the side with the different jacks:
>
http://www.notebookcheck.net/fileadmin/Notebooks/Asus/N751JK-T4144H/rechts.jpg
>
> The yellow is the external speaker
> The one next to the USB ports is the headset with a logo of a headset and
a microphone drawn in it.

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=73bdd597823e2231dc882577dbbaf8df92fe1775

[ALC668_FIXUP_DELL_MIC_NO_PRESENCE] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x19, 0x03a1913d }, /* use as headphone mic, without its own jack
detect */
+ { 0x1b, 0x03a1113c }, /* use as headset mic, without its own jack detect
*/
+ { }
+ },
+ .chained = true,
+ .chain_id = ALC668_FIXUP_HEADSET_MODE
+ },
+ [ALC668_FIXUP_HEADSET_MODE] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc_fixup_headset_mode_alc668,
+ },

No need to change if you are using headphone since default is headphone

Support of Headphone mic can be removed by
alc_fixup_headset_mode_no_hp_mic()

You need to hack the driver to set current_headset_type to cita or omtp
instead of unknown

spec->current_headset_type = ALC_HEADSET_MODE_UNKNOWN;