The Lenovo Yoga Pro 7 14IMH9 (DMI: 83E2) shares PCI SSID 17aa:3847
with the Legion 7 16ACHG6, but has a different codec subsystem ID
(17aa:38cf). The existing SND_PCI_QUIRK for 17aa:3847 applies
ALC287_FIXUP_LEGION_16ACHG6, which attempts to initialize an external
I2C amplifier (CLSA0100) that is not present on the Yoga Pro 7 14IMH9.

As a result, pin 0x17 (bass speakers) is connected to DAC 0x06 which
has no volume control, making hardware volume adjustment completely
non-functional. Audio is either silent or at maximum volume regardless
of the slider position.

Add a HDA_CODEC_QUIRK entry using the codec subsystem ID (17aa:38cf)
to correctly identify the Yoga Pro 7 14IMH9 and apply
ALC287_FIXUP_YOGA9_14IMH9_BASS_SPK_PIN, which redirects pin 0x17 to
DAC 0x02 and restores proper volume control. The existing Legion entry
is preserved unchanged.

This follows the same pattern used for 17aa:386e, where Legion Y9000X
and Yoga Pro 7 14ARP8 share a PCI SSID but are distinguished via
HDA_CODEC_QUIRK.

Link: https://github.com/nomad4tech/lenovo-yoga-pro-7-linux
Tested-by: Alexander Savenko <alex.sav4387@gmail.com>
Signed-off-by: Alexander Savenko <alex.sav4387@gmail.com>
---
 sound/hda/codecs/realtek/alc269.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 086c05053..8efb3e363 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -7622,6 +7622,10 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x383d, "Legion Y9000X 2019", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Lenovo Yoga 9i / Yoga Book 9i", ALC287_FIXUP_LENOVO_YOGA_BOOK_9I),
+	/* Yoga Pro 7 14IMH9 shares PCI SSID 17aa:3847 with Legion 7 16ACHG6;
+	 * use codec SSID to distinguish them
+	 */
+	HDA_CODEC_QUIRK(0x17aa, 0x38cf, "Lenovo Yoga Pro 7 14IMH9", ALC287_FIXUP_YOGA9_14IMH9_BASS_SPK_PIN),
 	SND_PCI_QUIRK(0x17aa, 0x3847, "Legion 7 16ACHG6", ALC287_FIXUP_LEGION_16ACHG6),
 	SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
-- 
2.43.0

On Tue, 31 Mar 2026 10:29:28 +0200,
Alexander Savenko wrote:
> 
> The Lenovo Yoga Pro 7 14IMH9 (DMI: 83E2) shares PCI SSID 17aa:3847
> with the Legion 7 16ACHG6, but has a different codec subsystem ID
> (17aa:38cf). The existing SND_PCI_QUIRK for 17aa:3847 applies
> ALC287_FIXUP_LEGION_16ACHG6, which attempts to initialize an external
> I2C amplifier (CLSA0100) that is not present on the Yoga Pro 7 14IMH9.
> 
> As a result, pin 0x17 (bass speakers) is connected to DAC 0x06 which
> has no volume control, making hardware volume adjustment completely
> non-functional. Audio is either silent or at maximum volume regardless
> of the slider position.
> 
> Add a HDA_CODEC_QUIRK entry using the codec subsystem ID (17aa:38cf)
> to correctly identify the Yoga Pro 7 14IMH9 and apply
> ALC287_FIXUP_YOGA9_14IMH9_BASS_SPK_PIN, which redirects pin 0x17 to
> DAC 0x02 and restores proper volume control. The existing Legion entry
> is preserved unchanged.
> 
> This follows the same pattern used for 17aa:386e, where Legion Y9000X
> and Yoga Pro 7 14ARP8 share a PCI SSID but are distinguished via
> HDA_CODEC_QUIRK.
> 
> Link: https://github.com/nomad4tech/lenovo-yoga-pro-7-linux
> Tested-by: Alexander Savenko <alex.sav4387@gmail.com>
> Signed-off-by: Alexander Savenko <alex.sav4387@gmail.com>

Applied now.  Thanks.


Takashi