Also affected: Lenovo Legion 7 16ITHg6 (82K6), BIOS H1CN58WW, Ubuntu 26.04.
PCI SSID 17aa:3811, ALC287 codec SSID 17aa:3855, 2x CS35L41 (CLSA0101).
Still broken in 7.0.0-31-generic (Ubuntu 7.0.0-31.31, upstream 7.0.14):
snd_hda_codec_alc269 hdaudioC1D0: ALC287: picked fixup for PCI SSID
17aa:3811
The amps probe but never load firmware or bind; speakers are silent.
7.0.0-22 is good.
The two-slot workaround from comment #4 works on 7.0.0-31 (speakers
audibly confirmed, both channels):
options snd-hda-intel model=17aa:3855,17aa:3855
ALC287: picked fixup for alias SSID 17aa:3855
cs35l41-hda i2c-CLSA0101:00-cs35l41-hda.0: CS35L41 Bound - SSID: 17aa3855,
... CH: L, FW EN: 1
cs35l41-hda i2c-CLSA0101:00-cs35l41-hda.1: CS35L41 Bound - SSID: 17aa3855,
... CH: R, FW EN: 1
Both slots are needed here too: the ALC287 came up as hdaudioC0D0 on one boot
and hdaudioC1D0 on
the next.
The upstream fix, dd074f04e046 ("ALSA: hda/realtek: Fix Legion 7 16ITHG6
speaker amp binding"),
is tagged Cc: stable but is not in 7.0.14. Please consider an SRU into
resolute. Happy to test a
-proposed kernel.
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https://bugs.launchpad.net/bugs/2163143
Title:
[Lenovo Legion 7 16ITHg6 82K6, Realtek ALC287 + 2x CS35L41]
Regression: internal speakers silent since 7.0.0-27; new PCI SSID
quirk 17aa:3811 shadows codec SSID quirk 17aa:3855
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