Thanks Kai-Heng. I added the text "i2c_hid.debug=1" to the line "GRUB_CMDLINE_LINUX_DEFAULT" of /etc/default/grub.
Attached is the dmesg output. ** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891406/+attachment/5401336/+files/dmesg -- 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/1891406 Title: Touchpad not detected Status in linux package in Ubuntu: Incomplete Bug description: Lenovo IdeaPad 3 15" Laptop, Intel Core i3-1005G1 Dual-Core Processor, 8GB Memory, 256GB Solid State Drive, Windows 10S - Abyss Blue - 81WE008HUS ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-42-generic 5.4.0-42.46 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: skjwang 1501 F.... pulseaudio /dev/snd/controlC1: skjwang 1501 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: Unity:Unity7:ubuntu Date: Wed Aug 12 19:53:05 2020 InstallationDate: Installed on 2020-07-25 (18 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) MachineType: LENOVO 81WE ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=89459a6c-37b1-4aa8-8399-dad2021b4422 ro i8042.reset quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-42-generic N/A linux-backports-modules-5.4.0-42-generic N/A linux-firmware 1.187.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/29/2020 dmi.bios.vendor: LENOVO dmi.bios.version: EMCN36WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0R32866 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad 3 15IIL05 dmi.modalias: dmi:bvnLENOVO:bvrEMCN36WW:bd05/29/2020:svnLENOVO:pn81WE:pvrIdeaPad315IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0R32866WIN:cvnLENOVO:ct10:cvrIdeaPad315IIL05: dmi.product.family: IdeaPad 3 15IIL05 dmi.product.name: 81WE dmi.product.sku: LENOVO_MT_81WE_BU_idea_FM_IdeaPad 3 15IIL05 dmi.product.version: IdeaPad 3 15IIL05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891406/+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
