I have the same touchpad issues with the same laptop IdeaPad 5 14ARE05 As requested by You-Sheng, I have added the kernel boot parameters and got some interesting logs.
Although, I am running arch linux, it looks like the journalctl logs are as relevant Some boot, the touchpad is detected but not fully working (tab click fails, two fingers motion fails, etc) Otherwise, it is not detected at all. On kernel 5.7.6: (no touchpad at all) i2c_hid i2c-MSFT0004:00: HID over i2c has not been provided an Int IRQ i2c_hid: probe of i2c-MSFT0004:00 failed with error -22 On kernel 5.8.2-rc2 mainline: (touchpad acting limited) i2c_hid i2c-MSFT0004:00: supply vdd not found, using dummy regulator i2c_hid i2c-MSFT0004:00: supply vddl not found, using dummy regulator i2c_hid i2c-MSFT0004:00: failed to retrieve report from device. input: MSFT0004:00 06CB:CD98 Mouse as /devices/platform/AMDI0010:00/i2c-0/i2c-MSFT0004:00/0018:06CB:CD98.0001/input/input13 input: MSFT0004:00 06CB:CD98 Touchpad as /devices/platform/AMDI0010:00/i2c-0/i2c-MSFT0004:00/0018:06CB:CD98.0001/input/input14 hid-generic 0018:06CB:CD98.0001: input,hidraw0: I2C HID v1.00 Mouse [MSFT0004:00 06CB:CD98] on i2c-MSFT0004:00 i2c_hid i2c-MSFT0004:00: failed to retrieve report from device. input: MSFT0004:00 06CB:CD98 Mouse as /devices/platform/AMDI0010:00/i2c-0/i2c-MSFT0004:00/0018:06CB:CD98.0001/input/input16 input: MSFT0004:00 06CB:CD98 Touchpad as /devices/platform/AMDI0010:00/i2c-0/i2c-MSFT0004:00/0018:06CB:CD98.0001/input/input17 hid-multitouch 0018:06CB:CD98.0001: input,hidraw0: I2C HID v1.00 Mouse [MSFT0004:00 06CB:CD98] on i2c-MSFT0004:00 If needed I can attached the full logs, but does not look like there is anything else relevant to this issue. -- 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/1884981 Title: The touchpad soesn't work at all Status in linux package in Ubuntu: Incomplete Bug description: I had Windows 10 on the device and the touch pad was working perfectly, but when I set up Ubuntu 20.04 with Windows, in both OCs the touch pad stopped working at all. It doesn't appear /proc/bus/input/devices file. $ lsb_release -rd Description: Ubuntu 20.04 LTS Release: 20.04 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-37-generic 5.4.0-37.41 ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41 Uname: Linux 5.4.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: danila 1249 F.... pulseaudio /dev/snd/controlC0: danila 1249 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Jun 24 18:00:28 2020 InstallationDate: Installed on 2020-06-24 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 81YM ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic root=UUID=c7036847-2fbc-429d-b113-30e6cc776647 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-37-generic N/A linux-backports-modules-5.4.0-37-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: DTCN18WW(V1.04) 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.modalias: dmi:bvnLENOVO:bvrDTCN18WW(V1.04):bd03/25/2020: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/1884981/+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
