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* possible issue with ALSA: hda/realtek: Use codec SSID matching for Lenovo devices
@ 2025-01-22  0:58 Samantha Glocker
  2025-01-22  7:21 ` Takashi Iwai
  0 siblings, 1 reply; 8+ messages in thread
From: Samantha Glocker @ 2025-01-22  0:58 UTC (permalink / raw)
  To: linux-sound; +Cc: tiwai

Hi, I'm a kernel maintainer from nobara and ASUS-Linux.

I've bifurcated an issue with sound on Lenovo Legion laptop(s)
starting from mainline 6.12.5, verified on Fedora proper, Nobara, and
CachyOS.

From the changelog,
https://patch.msgid.link/20241008120233.7154-4-tiwai@suse.de looks
like a likely candidate due to touching TAS2781 / TIA2781.

The issue will possibly affect sound on any or all Lenovo Legion Gen 8 and 9.

The obvious difference in dmesg on my Legion Pro 7 Gen 8 (16ARX8H) on
6.12.5, is the following line is completely missing:
[    4.761665] snd_hda_codec_realtek hdaudioC1D0: bound
i2c-TIAS2781:00 (ops tas2781_hda_comp_ops
[snd_hda_scodec_tas2781_i2c])

This suggests the TI amplifier is never identified.

(A second issue is LenovoLegionLinux DKMS not loading at all as of
6.12.5. I believe this is a separate issue, but it could be related to
how that project detects laptop models. Mentioning it here for
completeness.)

Best regards,
Samantha Glocker (SammiLucia)

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2025-01-25 12:05 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-01-22  0:58 possible issue with ALSA: hda/realtek: Use codec SSID matching for Lenovo devices Samantha Glocker
2025-01-22  7:21 ` Takashi Iwai
2025-01-22  7:23   ` Takashi Iwai
2025-01-22  8:53     ` Takashi Iwai
2025-01-23  2:00       ` Samantha Glocker
2025-01-23 11:07         ` Takashi Iwai
     [not found]           ` <CAGPQRHYG_BUSjWSN4LH4oPeM5h4E30WSyfaRynYhrcDYT95dXg@mail.gmail.com>
2025-01-24 22:58             ` Samantha Glocker
2025-01-25 12:05               ` Takashi Iwai

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