I had similar issue.
Lenovo Ideapad 5 14ARE05 dual boot Windows 10 and Ubuntu 20.04 (Kernel 5.11 after update) Solution steps: (1) Update your Ubuntu 20.04 installation with all the latest update. This should update your Kernel too (mine updated to 5.11). (2) Reboot (3) Go to Windows 10 and Download and install Latest BIOS update and install it. In my case BIOS updated from V1.09 to 1.10. ***Be careful and pay close attention to the instructions shown by the BIOS update installer. Ideally you should fully charge your laptop before performing BIOS update and keep your charger connected.*** Running BIOS update will reboot your system and change BIOS settings to default. If you had disabled secure boot to install and dual boot Ubuntu then this will enable secure boot option. You will need to disable it again. Once BIOS update is completed reboot and go to BIOS (F2) (4) Disable secure boot in BIOS again (5) Boot to Ubuntu. (Tip: Use F12 key to boot to Ubuntu if you do not get Ubuntu Grub Bootloader Menu. You can change the boot order from BIOS settings (F2) permanently) Your touchpad should start working. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe in Ubuntu. https://bugs.launchpad.net/bugs/1878279 Title: MSFT0004:00 06CB:CD98 Touchpad/trackpad mouse randomly not recognized from any given boot Status in Linux: Confirmed Status in Ubuntu: Confirmed Status in linux-signed-hwe package in Ubuntu: In Progress Status in linux-signed-hwe package in Fedora: New Bug description: Touchpad 'Buttonless Mylar surface multi-touch touchpad' doesn't work at all (No response from the Touchpad) for notebook 'Lenovo Ideapad 5 14IIL05 81YH' from first system start on. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-29-generic 5.4.0-29.33 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tilman 1607 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue May 12 21:22:22 2020 InstallationDate: Installed on 2020-05-12 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 81YH ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-29-generic root=UUID=bb961a96-8855-4e50-814d-7994235377c3 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-29-generic N/A linux-backports-modules-5.4.0-29-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/25/2020 dmi.bios.vendor: LENOVO dmi.bios.version: DSCN23WW(V1.09) 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:bvrDSCN23WW(V1.09):bd03/25/2020: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/linux/+bug/1878279/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
