your coef dump seem indicate headset mic is cita
val = alc_read_coef_idx(codec, 0x6c);
is_ctia = (val & 0x001c) == 0x001c;
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_realtek.c?id=73bdd597823e2231dc882577dbbaf8df92fe1775
+static void alc_determine_headset_type(struct hda_codec *codec)
+{
+ int val;
+ bool is_ctia = false;
+ struct alc_spec *spec = codec->spec;
+
+ switch (codec->vendor_id) {
+ case 0x10ec0292:
+ alc_write_coef_idx(codec, 0x6b, 0xd429);
+ msleep(300);
+ val = alc_read_coef_idx(codec, 0x6c);
+ is_ctia = (val & 0x001c) == 0x001c;
+ break;
snd_printdd("Headset jack detected iPhone-style headset: %s\n",
+ is_ctia ? "yes" : "no");
+ spec->current_headset_type = is_ctia ? ALC_HEADSET_TYPE_CTIA :
ALC_HEADSET_TYPE_OMTP;
+}
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https://bugs.launchpad.net/bugs/1414706
Title:
[20ALCTO1WW, Realtek ALC292, Black Mic, Left][Lenovo ThinkPad X240]
external mic has no sound at all
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