[PATCH] ALSA:hda/realtek:ALC269 fixup for Yoga/Legion Mic noise

[PATCH] ALSA:hda/realtek:ALC269 fixup for Yoga/Legion Mic noise

[Jackie Dong]

Lenovo Yoga Pro 7 15ASH11 and Legion 7 15ASH11 use the same audio
subsystem implementation and support only analog microphone.

Limit Amp-In Vals to 0x00 and 0x01 for the internal microphone to reduce
recording noise. Values 0x02 and 0x03 introduce significant noise on
them.

Signed-off-by: Jackie Dong <xy-jackie@139.com>
---
 sound/hda/codecs/realtek/alc269.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 48a2e7f2ebb1..9ac9971d7873 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -3524,6 +3524,16 @@ static void alc287_fixup_yoga9_14iap7_bass_spk_pin(struct hda_codec *codec,
 	}
 }
 
+static void alc_fixup_yoga_pro7_audio(struct hda_codec *codec,
+				      const struct hda_fixup *fix, int action)
+{
+	/* Reuse the DAC routing selected for ThinkPad X1 Gen7 */
+	alc285_fixup_thinkpad_x1_gen7(codec, fix, action);
+
+	/* Limit the internal mic boost to 0 or 1 to avoid noise */
+	alc269_fixup_limit_int_mic_boost(codec, fix, action);
+}
+
 static void alc295_fixup_dell_inspiron_top_speakers(struct hda_codec *codec,
 					  const struct hda_fixup *fix, int action)
 {
@@ -6209,8 +6219,7 @@ static const struct hda_fixup alc269_fixups[] = {
 	},
 	[ALC287_FIXUP_LENOVO_YOGA_PRO7] = {
 		.type = HDA_FIXUP_FUNC,
-		/* Reuse the DAC routing selected for ThinkPad X1 Gen7 */
-		.v.func = alc285_fixup_thinkpad_x1_gen7,
+		.v.func = alc_fixup_yoga_pro7_audio,
 		.chained = true,
 		.chain_id = ALC269_FIXUP_LENOVO_XPAD_ACPI,
 	},
-- 
2.53.0

Re: [PATCH] ALSA:hda/realtek:ALC269 fixup for Yoga/Legion Mic noise

[Takashi Iwai]

On Tue, 04 Aug 2026 14:36:37 +0200,
Jackie Dong wrote:
> 
> Lenovo Yoga Pro 7 15ASH11 and Legion 7 15ASH11 use the same audio
> subsystem implementation and support only analog microphone.
> 
> Limit Amp-In Vals to 0x00 and 0x01 for the internal microphone to reduce
> recording noise. Values 0x02 and 0x03 introduce significant noise on
> them.
> 
> Signed-off-by: Jackie Dong <xy-jackie@139.com>

Applied to for-next branch now.  Thanks.


Takashi