[BUG] [Audio] Lenovo Legion S7 15IMH5 - No speaker output (ALC287, SSID 17aa:3822 missing quirk)

[Corbaax]

Pre-flight checklist

• I have searched existing issues and this is not a duplicate.
• I have read the Contributing Guidelines.
• I have verified the issue is reproducible with the latest available CachyOS kernel.

Upstream / vanilla kernel check

I tested with a vanilla/upstream kernel and the issue does reproduce there

Kernel variant

linux-cachyos (EEVDF, Clang)

System information (cachyos-bugreport.sh)

https://paste.cachyos.org/p/f14fc73.log

Manual system information (if cachyos-bugreport.sh is unavailable)

Bug description

Device Information

• Laptop Model: Lenovo Legion S7 15IMH5 (82BC)
• Kernel: 6.19.10-1-cachyos
• Audio codec: Realtek ALC287
• Codec Subsystem ID: 0x17aa3822
• PCI Subsystem: vendor=0x17aa device=0x3811
• BIOS: FDCN44WW

Problem

Internal speakers produce no sound. Headphones via jack work correctly.

dmesg reports:
snd_hda_codec_alc269 hdaudioC0D0: ALC287: picked fixup for PCI SSID 17aa:0000

The codec hardware exposes SSID 17aa:0000 instead of the real value 17aa:3822,
so no fixup is applied and speakers are silent.

Steps to reproduce

1. Boot CachyOS on Lenovo Legion S7 15IMH5 (82BC)
2. Open any audio player and play audio
3. No sound from internal speakers

Expected behavior

Internal speakers produce audio output.

Actual behavior

Internal speakers are completely silent. Headphones via 3.5mm jack work correctly.

The kernel does not apply any fixup for this hardware because the codec exposes
SSID 17aa:0000 instead of the real value 17aa:3822, and no quirk entry exists
for either value in patch_realtek.c:

snd_hda_codec_alc269 hdaudioC0D0: ALC287: picked fixup for PCI SSID 17aa:0000

Audio is restored only by manually applying HDA verbs via hda-verb at boot,
confirming the hardware works correctly and only the kernel quirk is missing.

Logs / stack traces

Additional system information

No response

[1Naim]

Audio is restored only by manually applying HDA verbs via hda-verb at boot,
confirming the hardware works correctly and only the kernel quirk is missing

Do you know which kernel quirk needs to be applied?

snd_hda_codec_alc269 hdaudioC0D0: ALC287: picked fixup for PCI SSID 17aa:0000

I feel like this is just a generic fixup for Lenovo devices.

[Corbaax]

The specific quirk needed is ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS, which is already used for the Legion 7i 15IMHG05 (17aa:3813).
The verb sequence applied by that fixup is identical to the one that restores audio when applied manually via hda-verb.

the device's BIOS exposes codec SSID 17aa:0000 instead of the real value 17aa:3822, which is why the snd-hda-intel firmware patch mechanism fails.

[1Naim]

https://share.cachyos.org/x86_64_v3/kernel/7.0/ Does it work with 7.0-rc7?