Lenovo V14-IIL 82C4 Touchpad Not Working

[Marina De Amicis]

The touchpad is not working

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: linux-image-5.8.0-33-generic 5.8.0-33.36
ProcVersionSignature: Ubuntu 5.8.0-33.36-generic 5.8.17
Uname: Linux 5.8.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: marina 1332 F.... pulseaudio
 /dev/snd/pcmC0D0p: marina 1332 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Dec 25 19:54:42 2020
InstallationDate: Installed on 2020-12-17 (7 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 174f:1176 Syntek Integrated Camera
 Bus 001 Device 002: ID 04b3:3107 IBM Corp. ThinkPad 800dpi Optical Travel Mouse
 Bus 001 Device 004: ID 0bda:c02f Realtek Semiconductor Corp. Bluetooth Radio
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 82C4
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-33-generic root=UUID=602d5137-5496-4d15-8f08-30bafbaa735c ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.8.0-33-generic N/A
 linux-backports-modules-5.8.0-33-generic N/A
 linux-firmware 1.190.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/22/2020
dmi.bios.release: 1.48
dmi.bios.vendor: LENOVO
dmi.bios.version: DKCN48WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo V14-IIL
dmi.ec.firmware.release: 1.48
dmi.modalias: dmi:bvnLENOVO:bvrDKCN48WW:bd07/22/2020:br1.48:efr1.48:svnLENOVO:pn82C4:pvrLenovoV14-IIL:rvnLENOVO:rnLNVNB161216:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrLenovoV14-IIL:
dmi.product.family: V14-IIL
dmi.product.name: 82C4
dmi.product.sku: LENOVO_MT_82C4_BU_idea_FM_V14-IIL
dmi.product.version: Lenovo V14-IIL
dmi.sys.vendor: LENOVO

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Daniel Letzeisen (dtl131)]

Note: I do not think a BIOS update will help with this issue, but I recommend you run anyway:

https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-v-series-laptops/v14-iil/downloads/ds542139-bios-update-for-windows-10-64-bit-s145-14iil-s145-15iil-v14-iil-v15-iil

Apparently, this needs some sort of Intel "SIO" driver on Windows. I'm not sure what the equivalent is in the Linux kernel or if it exists.

[ANOMM (anomm)]

Appending "i8042.nopnp=1 pci=nocrs" to boot parameters worked for the touchpad issue on the Lenovo V14-IIL .

Following are the steps I've followed:
1.) Open the file /etc/default/grub for editing, for example by running
      sudoedit /etc/default/grub
2.) Add to the line beginning GRUB_CMDLINE_LINUX_DEFAULT: "i8042.nopnp=1 pci=nocrs" so that it reads:
      GRUB_CMDLINE_LINUX_DEFAULT="i8042.nopnp=1 pci=nocrs"
     ** If other parameters are there between the double quotes, it may be OK to leave them.
3.) Save the file and exit
4.) Run this command to update the GRUB configuration:
      sudo update-grub
5.) Reboot

Other relevant threads for this:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881322/comments/5
https://askubuntu.com/questions/1206190/elan-touchpad-not-working-on-lenovo-ideapad-with-ubuntu-16-04
https://forums.lenovo.com/t5/Ubuntu/ThinkBook-14-IML-ELAN-TouchPad-Not-Recognized-Ubuntu/m-p/4622518?page=2#5104555

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/comments/66
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861610/comments/96