Internal microphone not being recognized on Lenovo Yoga Slim 7 after kernel upgrade

[Nu Pot]

After updating some packages which included a new version of kernel (5.8.0-44-generic) the internal microphone of my Lenovo Yoga Slim 7 does not work anymore and it doesn't seem to be recognized in Settings->Sound (I attached a screenshot)

1. ~$ lsb_release -rd
Description: Ubuntu 20.04.2 LTS
Release: 20.04

2. ~# apt-cache policy linux-image-5.8.0-44-generic
linux-image-5.8.0-44-generic:
  Installed: 5.8.0-44.50~20.04.1
  Candidate: 5.8.0-44.50~20.04.1
  Version table:
 *** 5.8.0-44.50~20.04.1 500
        500 http://at.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
        100 /var/lib/dpkg/status

3. Expected internal microphone to work
4. Internal microphone not working
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: stefan 1690 F.... pulseaudio
 /dev/snd/controlC0: stefan 1690 F.... pulseaudio
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-02-15 (10 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
MachineType: LENOVO 82A2
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-44-generic root=UUID=06bbabdd-494d-48b9-b17e-31cb56c8ff0f ro quiet splash mem_sleep_default=deep vt.handoff=7
ProcVersionSignature: Ubuntu 5.8.0-44.50~20.04.1-generic 5.8.18
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-5.8.0-44-generic N/A
 linux-backports-modules-5.8.0-44-generic N/A
 linux-firmware 1.187.9
Tags: focal
Uname: Linux 5.8.0-44-generic x86_64
UnreportableReason: This report is about a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: False
dmi.bios.date: 01/18/2020
dmi.bios.release: 1.38
dmi.bios.vendor: LENOVO
dmi.bios.version: DMCN38WW
dmi.board.asset.tag: ���������������
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: ���������������
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Yoga Slim 7 14ARE05
dmi.ec.firmware.release: 1.29
dmi.modalias: dmi:bvnLENOVO:bvrDMCN38WW:bd01/18/2020:br1.38:efr1.29:svnLENOVO:pn82A2:pvrYogaSlim714ARE05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrYogaSlim714ARE05:
dmi.product.family: Yoga Slim 7 14ARE05
dmi.product.name: 82A2
dmi.product.sku: LENOVO_MT_82A2_BU_idea_FM_Yoga Slim 7 14ARE05
dmi.product.version: Yoga Slim 7 14ARE05
dmi.sys.vendor: LENOVO
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: stefan 1690 F.... pulseaudio
 /dev/snd/controlC0: stefan 1690 F.... pulseaudio
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-02-15 (10 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Package: alsa-base 1.0.25+dfsg-0ubuntu5
PackageArchitecture: all
ProcVersionSignature: Ubuntu 5.8.0-44.50~20.04.1-generic 5.8.18
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
Tags: third-party-packages focal
Uname: Linux 5.8.0-44-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 01/18/2020
dmi.bios.release: 1.38
dmi.bios.vendor: LENOVO
dmi.bios.version: DMCN38WW
dmi.board.asset.tag: ���������������
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: ���������������
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Yoga Slim 7 14ARE05
dmi.ec.firmware.release: 1.29
dmi.modalias: dmi:bvnLENOVO:bvrDMCN38WW:bd01/18/2020:br1.38:efr1.29:svnLENOVO:pn82A2:pvrYogaSlim714ARE05:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrYogaSlim714ARE05:
dmi.product.family: Yoga Slim 7 14ARE05
dmi.product.name: 82A2
dmi.product.sku: LENOVO_MT_82A2_BU_idea_FM_Yoga Slim 7 14ARE05
dmi.product.version: Yoga Slim 7 14ARE05
dmi.sys.vendor: LENOVO

[Nu Pot (acid24)]

Here's a screenshot of how it looks on previous kernel version 5.8.0-43-generic where the laptop's microphone works fine

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1916988/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Nu Pot (acid24)]

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[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Nu Pot (acid24)]

Problem persists on 5.8.0-45-generic

[Nu Pot (acid24)]

This https://github.com/jrandiny/yoga-slim7-ubuntu#Microphone got the microphone to work again

[Ben Polman (ben-polman)]

this also works for 5.8.0.48

[Danilo Egea Gondolfo (danilogondolfo)]

My headset microphone is not recognized on Kinetic (Bluetooth works).

This is my laptop:

Manufacturer: LENOVO
Product Name: 82MS
Version: Yoga Slim 7 Pro 14ACH5
SKU Number: LENOVO_MT_82MS_BU_idea_FM_Yoga Slim 7 Pro 14ACH5

It seems this commit fixes the issue but I didn't test it yet:

https://github.com/torvalds/linux/commit/2232b2dd8cd4f1e6d554b2c3f6899ce36f791b67

Relevant discussion: https://bugzilla.kernel.org/show_bug.cgi?id=216299