Recently we enabled a HP AIO machine, we found the mic on the machine couldn't record any sound and it couldn't detect plugging and unplugging as well.

Through debugging we found the mic is set to manual detect mode, after setting it to auto detect mode, it could detect plugging and unplugging and could record sound.

Cc: stable@vger.kernel.org Signed-off-by: Hui Wang hui.wang@canonical.com --- sound/pci/hda/patch_realtek.c | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index d4f17b465892..4e5809648df1 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6233,6 +6233,7 @@ enum { ALC269_FIXUP_LEMOTE_A190X, ALC256_FIXUP_INTEL_NUC8_RUGGED, ALC255_FIXUP_XIAOMI_HEADSET_MIC, + ALC274_FIXUP_HP_MIC, };

static const struct hda_fixup alc269_fixups[] = { @@ -7612,6 +7613,14 @@ static const struct hda_fixup alc269_fixups[] = { .chained = true, .chain_id = ALC289_FIXUP_ASUS_GA401 }, + [ALC274_FIXUP_HP_MIC] = { + .type = HDA_FIXUP_VERBS, + .v.verbs = (const struct hda_verb[]) { + { 0x20, AC_VERB_SET_COEF_INDEX, 0x45 }, + { 0x20, AC_VERB_SET_PROC_COEF, 0x5089 }, + { } + }, + }, };

static const struct snd_pci_quirk alc269_fixup_tbl[] = { @@ -7763,6 +7772,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x869d, "HP", ALC236_FIXUP_HP_MUTE_LED), SND_PCI_QUIRK(0x103c, 0x8729, "HP", ALC285_FIXUP_HP_GPIO_LED), SND_PCI_QUIRK(0x103c, 0x8736, "HP", ALC285_FIXUP_HP_GPIO_AMP_INIT), + SND_PCI_QUIRK(0x103c, 0x874e, "HP", ALC274_FIXUP_HP_MIC), SND_PCI_QUIRK(0x103c, 0x877a, "HP", ALC285_FIXUP_HP_MUTE_LED), SND_PCI_QUIRK(0x103c, 0x877d, "HP", ALC236_FIXUP_HP_MUTE_LED), SND_PCI_QUIRK(0x1043, 0x103e, "ASUS X540SA", ALC256_FIXUP_ASUS_MIC), @@ -8088,6 +8098,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = { {.id = ALC256_FIXUP_MEDION_HEADSET_NO_PRESENCE, .name = "alc256-medion-headset"}, {.id = ALC298_FIXUP_SAMSUNG_HEADPHONE_VERY_QUIET, .name = "alc298-samsung-headphone"}, {.id = ALC255_FIXUP_XIAOMI_HEADSET_MIC, .name = "alc255-xiaomi-headset"}, + {.id = ALC274_FIXUP_HP_MIC, .name = "alc274-hp-mic-detect"}, {} }; #define ALC225_STANDARD_PINS \