I have a Lenovo Yoga 7 14ARB7 too.
I think it uses an TAS2563 amplifier chip. According to the windows driver it
has a firmware too. There is some support in the kernel too.
https://github.com/torvalds/linux/blob/master/sound/soc/codecs/tas2562.c
The ACPI part:
```
Scope (_SB.I2CD)
{
Device (TAS)
{
Name (_HID, "INT8866") // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings
{
Name (RBUF, ResourceTemplate ()
{
I2cSerialBusV2 (0x004C, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\_SB.I2CD",
0x00, ResourceConsumer, , Exclusive,
)
I2cSerialBusV2 (0x004D, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\_SB.I2CD",
0x00, ResourceConsumer, , Exclusive,
)
GpioInt (Edge, ActiveLow, SharedAndWake, PullNone, 0x0000,
"\\_SB.GPIO", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x0020
}
})
Return (RBUF) /* \_SB_.I2CD.TAS_._CRS.RBUF */
}
Method (_STA, 0, NotSerialized) // _STA: Status
{
Return (0x0F)
}
}
}
```
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
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
To manage notifications about this bug go to:
https://bugs.launchpad.net/sound-2.6/+bug/1958019/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
