Ubuntu
alsa-driver package

  1. Bug #1414706
  2. Comment #40

Comment 40 for bug 1414706

Revision history for this message
Raymond (superquad-vortex2) wrote :

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;
+}