The following workaround per Bug #1881319 Comment #32 does not work on fresh installation of Ubuntu 20.04 with 5.8.55
Edit /etc/default/grub file line to below: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash initcall_blacklist=elants_i2c_driver_init" $ sudo update-grub reboot -- 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/1916064 Title: Touchpad not detected on Ideapad 14ARE05 Status in linux package in Ubuntu: Confirmed Bug description: Laptop: Lenovo Ideapad 5-14ARE05 Laptop - Type 81YM - AMD Ryzen 7 4700U Description: Ubuntu 20.10 Release: 20.10 Linux leptovo 5.8.0-43-generic #49-Ubuntu SMP Fri Feb 5 03:01:28 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux Also tested with: Linux leptovo 5.11.0-051100-generic #202102142330 SMP Sun Feb 14 23:33:21 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux - and other kernels. Hello! After updating the BIOS from 1.06 to 1.10 the touchpad is not recognised anymore. It was working fine with 5.9.12 (updated the version with Ukuu), but now it does not respons with any verion tried by me: 5.8.0.43 / 5.9.16 / 5.10.17 / 5.11.0. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu50.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC3: lebucur 1295 F.... pulseaudio /dev/snd/controlC1: lebucur 1295 F.... pulseaudio /dev/snd/controlC0: lebucur 1295 F.... pulseaudio /dev/snd/controlC2: lebucur 1295 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.10 InstallationDate: Installed on 2020-10-06 (137 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: LENOVO 81YM Package: linux (not installed) ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic root=UUID=708db822-7208-4b47-8329-20d5cc13db11 ro quiet splash mem_sleep_default=deep vt.handoff=7 ProcVersionSignature: Ubuntu 5.8.0-43.49-generic 5.8.18 RelatedPackageVersions: linux-restricted-modules-5.8.0-43-generic N/A linux-backports-modules-5.8.0-43-generic N/A linux-firmware 1.190.3 Tags: groovy Uname: Linux 5.8.0-43-generic x86_64 UpgradeStatus: Upgraded to groovy on 2020-10-23 (120 days ago) UserGroups: adm cdrom dip i2c input lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 12/25/2020 dmi.bios.release: 1.24 dmi.bios.vendor: LENOVO dmi.bios.version: DTCN24WW(V1.10) 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 14ARE05 dmi.ec.firmware.release: 1.24 dmi.modalias: dmi:bvnLENOVO:bvrDTCN24WW(V1.10):bd12/25/2020:br1.24:efr1.24:svnLENOVO:pn81YM:pvrIdeaPad514ARE05:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrIdeaPad514ARE05: dmi.product.family: IdeaPad 5 14ARE05 dmi.product.name: 81YM dmi.product.sku: LENOVO_MT_81YM_BU_idea_FM_IdeaPad 5 14ARE05 dmi.product.version: IdeaPad 5 14ARE05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1916064/+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
