[PATCH] ALSA: hda/realtek: Fix speakers on Lunnen Ground 14

[PATCH] ALSA: hda/realtek: Fix speakers on Lunnen Ground 14

[Nikita Maksimov]

The firmware on the Lunnen Ground 14 marks pin 0x1b as unused even
though the internal speakers are connected to it. As a result, the
speakers are not detected.

Add a pin configuration quirk for PCI subsystem ID 2782:a212 to configure
pin 0x1b as an internal speaker.

The pin configuration was tested on a Lunnen Ground 14 (DMI product LL4FA)
with an ALC269VC codec. The internal speakers and microphone work as
expected.

Cc: stable@vger.kernel.org
Signed-off-by: Nikita Maksimov <nickstogramm@yandex.ru>
---
 sound/hda/codecs/realtek/alc269.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 09e724749..97632d2f9 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -3906,6 +3906,7 @@ enum {
 	ALC269_FIXUP_DMIC_THINKPAD_ACPI,
 	ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13,
 	ALC269VC_FIXUP_INFINIX_Y4_MAX,
+	ALC269VC_FIXUP_LUNNEN_GROUND_14,
 	ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO,
 	ALC255_FIXUP_ACER_MIC_NO_PRESENCE,
 	ALC255_FIXUP_ASUS_MIC_NO_PRESENCE,
@@ -4389,6 +4390,13 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
 	},
+	[ALC269VC_FIXUP_LUNNEN_GROUND_14] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x1b, 0x90170150 }, /* internal speaker */
+			{ }
+		},
+	},
 	[ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -7974,6 +7982,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x2782, 0x1705, "MEDION E15433", ALC269VC_FIXUP_INFINIX_Y4_MAX),
 	SND_PCI_QUIRK(0x2782, 0x1707, "Vaio VJFE-ADL", ALC298_FIXUP_SPK_VOLUME),
 	SND_PCI_QUIRK(0x2782, 0x4900, "MEDION E15443", ALC233_FIXUP_MEDION_MTL_SPK),
+	SND_PCI_QUIRK(0x2782, 0xa212, "Lunnen Ground 14", ALC269VC_FIXUP_LUNNEN_GROUND_14),
 	SND_PCI_QUIRK(0x7017, 0x2014, "Star Labs StarFighter", ALC233_FIXUP_STARLABS_STARFIGHTER),
 	SND_PCI_QUIRK(0x8086, 0x2074, "Intel NUC 8", ALC233_FIXUP_INTEL_NUC8_DMIC),
 	SND_PCI_QUIRK(0x8086, 0x2080, "Intel NUC 8 Rugged", ALC256_FIXUP_INTEL_NUC8_RUGGED),

base-commit: 2d0769387594eb26df33c72c08c6429e4fddf5fd
-- 
2.50.1

Re: [PATCH] ALSA: hda/realtek: Fix speakers on Lunnen Ground 14

[Takashi Iwai]

On Mon, 20 Jul 2026 20:02:14 +0200,
Nikita Maksimov wrote:
> 
> The firmware on the Lunnen Ground 14 marks pin 0x1b as unused even
> though the internal speakers are connected to it. As a result, the
> speakers are not detected.
> 
> Add a pin configuration quirk for PCI subsystem ID 2782:a212 to configure
> pin 0x1b as an internal speaker.
> 
> The pin configuration was tested on a Lunnen Ground 14 (DMI product LL4FA)
> with an ALC269VC codec. The internal speakers and microphone work as
> expected.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Nikita Maksimov <nickstogramm@yandex.ru>

Applied now.  Thanks.


Takashi