[PATCH] ALSA: hda/realtek: keep headset mic on Acer SSID 0x1640

[PATCH] ALSA: hda/realtek: keep headset mic on Acer SSID 0x1640

[Iván Ezequiel Rodriguez]

The micmute-LED quirk for the Aspire A315-44P matches PCI SSID
1025:1640 before the Acer ALC256 pin fallback. The Aspire Go 15
AG15-42P shares that SSID and leaves nid 0x19 as 0x411111f0, so
selecting the LED-only fixup drops the headset-mic pin remap that
the fallback would have applied.

Chain ALC2XX_FIXUP_HEADSET_MIC before the GPIO3 micmute LED on that
SSID. Leave the Swift SFG16 entry (0x169a) unchanged.

Tested on Acer Aspire AG15-42P (Callisto_BCU): PCI pick 1025:1640,
Headset Mic=0x19, GPIO3 enabled with no physical micmute LED, speaker
and capture paths functional.

Fixes: d830631a128b ("ALSA: hda/realtek: Add micmute LED quirk for Acer Aspire A315-44P")
Cc: stable@vger.kernel.org
Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>
---
 sound/hda/codecs/realtek/alc269.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 1623cf926c71..2793d09fbf6f 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -4388,6 +4388,7 @@ enum {
 	ALC285_LENOVO_DAC_RENAME,
 	ALC287_FIXUP_YOGA9_SPEAKER2_TO_DAC1,
 	ALC256_FIXUP_IPASON_SMARTBOOK_S1,
+	ALC256_FIXUP_ACER_HEADSET_MICMUTE_LED,
 };
 
 /* A special fixup for Lenovo C940 and Yoga Duet 7;
@@ -6900,6 +6901,13 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc256_fixup_acer_sfg16_micmute_led,
 	},
+	[ALC256_FIXUP_ACER_HEADSET_MICMUTE_LED] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc256_fixup_acer_sfg16_micmute_led,
+		.chained = true,
+		.chained_before = true,
+		.chain_id = ALC2XX_FIXUP_HEADSET_MIC,
+	},
 	[ALC256_FIXUP_HEADPHONE_AMP_VOL] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc256_decrease_headphone_amp_val,
@@ -7230,7 +7238,13 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x160e, "Acer PT316-51S", ALC2XX_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x1616, "Acer Aspire A515-57", ALC256_FIXUP_ACER_COLDBOOT),
 	SND_PCI_QUIRK(0x1025, 0x161f, "Acer S40-54", ALC256_FIXUP_ACER_MIC_NO_PRESENCE),
-	SND_PCI_QUIRK(0x1025, 0x1640, "Acer Aspire A315-44P", ALC256_FIXUP_ACER_SFG16_MICMUTE_LED),
+	/*
+	 * Shared SSID: A315-44P needs GPIO3 micmute LED; AG15-42P needs
+	 * the headset pin remap (BIOS leaves 0x19 as 0x411111f0). One
+	 * entry applies both. GPIO3 is unused on AG15.
+	 */
+	SND_PCI_QUIRK(0x1025, 0x1640, "Acer Aspire A315-44P / AG15-42P",
+		      ALC256_FIXUP_ACER_HEADSET_MICMUTE_LED),
 	SND_PCI_QUIRK(0x1025, 0x166c, "Acer Predator PH16-71", ALC2XX_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x1679, "Acer Nitro 16 AN16-41", ALC2XX_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x169a, "Acer Swift SFG16", ALC256_FIXUP_ACER_SFG16_MICMUTE_LED),
-- 
2.43.0

Re: [PATCH] ALSA: hda/realtek: keep headset mic on Acer SSID 0x1640

[Takashi Iwai]

On Tue, 13 Oct 2026 22:42:19 +0200,
Iván Ezequiel Rodriguez wrote:
> 
> The micmute-LED quirk for the Aspire A315-44P matches PCI SSID
> 1025:1640 before the Acer ALC256 pin fallback. The Aspire Go 15
> AG15-42P shares that SSID and leaves nid 0x19 as 0x411111f0, so
> selecting the LED-only fixup drops the headset-mic pin remap that
> the fallback would have applied.
> 
> Chain ALC2XX_FIXUP_HEADSET_MIC before the GPIO3 micmute LED on that
> SSID. Leave the Swift SFG16 entry (0x169a) unchanged.
> 
> Tested on Acer Aspire AG15-42P (Callisto_BCU): PCI pick 1025:1640,
> Headset Mic=0x19, GPIO3 enabled with no physical micmute LED, speaker
> and capture paths functional.
> 
> Fixes: d830631a128b ("ALSA: hda/realtek: Add micmute LED quirk for Acer Aspire A315-44P")
> Cc: stable@vger.kernel.org
> Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>

Applied now to for-next branch (with a correction of
ALC256_FIXUP_ACER_HEADSET_MICMUTE_LED enum position, so that it can be
cleanly applied to stable trees).


thanks,

Takashi