Okay. I've updated the kernel to 5.7.1 and It has helped me. Audio also works.
/proc/bus/input/devices updated: I: Bus=0018 Vendor=06cb Product=cd98 Version=0100 N: Name="MSFT0004:01 06CB:CD98 Touchpad" P: Phys=i2c-MSFT0004:01 S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-MSFT0004:01/0018:06CB:CD98.0001/input/input11 U: Uniq= H: Handlers=mouse1 event8 B: PROP=5 B: EV=1b B: KEY=e520 10000 0 0 0 0 B: ABS=2e0800000000003 B: MSC=20 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1882447 Title: Touchpad and sound doesn't work after the kernel update Status in linux package in Ubuntu: Confirmed Bug description: My laptop: Lenovo IdeaPad 5 14IIL05 This appeared after update, that I had made 06.06.2020. Sound is disappeared too. Then I reinstall Ubuntu and don't upgrade it. But touchpad doesn't work. And doesn't detect in /proc/bus/input/devices. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-26-generic 5.4.0-26.30 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: leschev 2331 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Jun 7 21:10:47 2020 InstallationDate: Installed on 2020-06-07 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 81YH ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-26-generic root=UUID=b86f12a0-6a3e-48db-a62a-5246a95afc77 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-26-generic N/A linux-backports-modules-5.4.0-26-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/06/2020 dmi.bios.vendor: LENOVO dmi.bios.version: DSCN22WW(V1.08) dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: No DPK dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad 5 14IIL05 dmi.modalias: dmi:bvnLENOVO:bvrDSCN22WW(V1.08):bd03/06/2020:svnLENOVO:pn81YH:pvrIdeaPad514IIL05:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrIdeaPad514IIL05: dmi.product.family: IdeaPad 5 14IIL05 dmi.product.name: 81YH dmi.product.sku: LENOVO_MT_81YH_BU_idea_FM_IdeaPad 5 14IIL05 dmi.product.version: IdeaPad 5 14IIL05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1882447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp