On this Lenovo machine, there are two front mics, and both of them are assigned the same name "Mic", but pulseaudio can't support two mics with the same name, as a workaround, we change the location for one of them, then the driver will assign "Front Mic" and "Mic" for them.

Cc: stable@vger.kernel.org Signed-off-by: Hui Wang hui.wang@canonical.com --- sound/pci/hda/patch_realtek.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index cebf59e..a6c3ce0 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5179,6 +5179,7 @@ enum { ALC233_FIXUP_ASUS_MIC_NO_PRESENCE, ALC233_FIXUP_EAPD_COEF_AND_MIC_NO_PRESENCE, ALC233_FIXUP_LENOVO_MULTI_CODECS, + ALC294_FIXUP_LENOVO_MIC_LOCATION, };

static const struct hda_fixup alc269_fixups[] = { @@ -5962,6 +5963,18 @@ enum { .type = HDA_FIXUP_FUNC, .v.func = alc233_alc662_fixup_lenovo_dual_codecs, }, + [ALC294_FIXUP_LENOVO_MIC_LOCATION] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { + /* Change the mic location from front to right, otherwise there are + two front mics with the same name, pulseaudio can't handle them. + This is just a temporary workaround, after applying this fixup, + there will be one "Front Mic" and one "Mic" in this machine. + */ + { 0x1a, 0x04a19040 }, + { } + }, + }, };

static const struct snd_pci_quirk alc269_fixup_tbl[] = { @@ -6143,6 +6156,7 @@ enum { SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC292_FIXUP_TPT460), SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), + SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION), SND_PCI_QUIRK(0x17aa, 0x3112, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY), SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI), SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),