(In reply to Gergo K from comment #865)
> Please try 0x38 instead of 0x70, and if still not found, try 0,1,2,4 instead
> of bus 3.
>
> If you still not found, please send your acpidump output.
# i2cset -y 1 0x38 0x7f 0x00
Error: Write failed
# i2cset -y 2 0x38 0x7f 0x00
# i2cset -y 2 0x38 0x00 0x00
# i2cset -y 2 0x38 0x7f 0x00
# i2cdump -y 2 0x38
No size specified (using byte-data access)
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 00 02 28 21 41 00 20 09 02 2a 28 10 93 02 00 ..?(!A. ??*(???.
10: 84 00 00 08 0a 00 44 80 00 8d 00 62 36 40 00 01 ?..??.D?.?.b6@.?
20: 2e 14 00 00 00 00 00 00 00 00 00 00 00 00 00 00 .?..............
30: 00 00 00 00 06 bd ad a8 00 00 00 fc bb dd ff ff ....????...???..
40: f6 14 00 00 80 80 00 00 00 00 02 99 80 00 1c 00 ??..??....???.?.
50: 00 00 a2 78 85 13 78 ff c7 c8 40 88 d9 81 00 00 ..?x??x.??@???..
60: 21 08 3c 48 84 88 b2 00 04 09 12 7b 00 1a 03 00 !?<H???.???{.??.
70: 96 02 00 08 00 e0 00 00 00 00 20 00 a0 00 74 00 ??.?.?.... .?.t.
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Above is after the sound is broken.
Immediately after doing the above, where sound is working, and then re-dump
# modprobe snd_hda_scodec_tas2781_i2c
# rmmod snd_hda_scodec_tas2781_i2c
# i2cset -y 2 0x38 0x00 0x00
# i2cset -y 2 0x38 0x7f 0x00
# i2cdump -y 2 0x38
Results in the exact same output.
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https://bugs.launchpad.net/bugs/1958019
Title:
[Lenovo Legion7 16ACHg6 82N6, Realtek ALC287, Speaker, Internal] No
sound at all
Status in sound-2.6 (alsa-kernel):
Confirmed
Status in alsa-driver package in Ubuntu:
Confirmed
Bug description:
On my Lenovo Legion-7-16ACHg6 laptop I can't hear any sound by
internal speakers, but it work by headphones connected to standard
jack aux.
uname -r
5.11.0-44-generic
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.11.0-44.48~20.04.2-generic 5.11.22
Uname: Linux 5.11.0-44-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: i3draven 1266 F.... pulseaudio
/dev/snd/controlC0: i3draven 1266 F.... pulseaudio
/dev/snd/controlC1: i3draven 1266 F.... pulseaudio
/dev/snd/pcmC1D0p: i3draven 1266 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Jan 15 15:10:53 2022
InstallationDate: Installed on 2021-10-11 (96 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Generic failed
Symptom_Card: Family 17h (Models 10h-1fh) HD Audio Controller - HD-Audio
Generic
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: i3draven 1266 F.... pulseaudio
/dev/snd/controlC0: i3draven 1266 F.... pulseaudio
/dev/snd/controlC1: i3draven 1266 F.... pulseaudio
/dev/snd/pcmC1D0p: i3draven 1266 F...m pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [82N6, Realtek ALC287, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/08/2021
dmi.bios.release: 1.49
dmi.bios.vendor: LENOVO
dmi.bios.version: GKCN49WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0R32862 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion 7 16ACHg6
dmi.ec.firmware.release: 1.49
dmi.modalias:
dmi:bvnLENOVO:bvrGKCN49WW:bd11/08/2021:br1.49:efr1.49:svnLENOVO:pn82N6:pvrLegion716ACHg6:skuLENOVO_MT_82N6_BU_idea_FM_Legion716ACHg6:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegion716ACHg6:
dmi.product.family: Legion 7 16ACHg6
dmi.product.name: 82N6
dmi.product.sku: LENOVO_MT_82N6_BU_idea_FM_Legion 7 16ACHg6
dmi.product.version: Legion 7 16ACHg6
dmi.sys.vendor: LENOVO
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