touchpad and keyboard

[Jorge Porres]

I reinstalled Ubuntu on 20.04 version in my laptop on an SSD and the keyboard and touch-pad stopped working

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-45-generic 5.4.0-45.49
ProcVersionSignature: Ubuntu 5.4.0-45.49-generic 5.4.55
Uname: Linux 5.4.0-45-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jorge 1551 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 3 00:47:37 2020
InstallationDate: Installed on 2020-09-02 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: CHUWI INNOVATION LIMITED AeroBook
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-45-generic root=UUID=4259a678-3627-47b0-81a7-b8449ea7222c ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-45-generic N/A
 linux-backports-modules-5.4.0-45-generic N/A
 linux-firmware 1.187.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/20/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: YZ-BI-133-X133KR110-KJ66B-106-N
dmi.board.asset.tag: Default string
dmi.board.name: AeroBook
dmi.board.vendor: CHUWI INNOVATION LIMITED
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 10
dmi.chassis.vendor: CHUWI INNOVATION LIMITED
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrYZ-BI-133-X133KR110-KJ66B-106-N:bd09/20/2019:svnCHUWIINNOVATIONLIMITED:pnAeroBook:pvrDefaultstring:rvnCHUWIINNOVATIONLIMITED:rnAeroBook:rvrDefaultstring:cvnCHUWIINNOVATIONLIMITED:ct10:cvrDefaultstring:
dmi.product.family: YZ106
dmi.product.name: AeroBook
dmi.product.sku: YZ106
dmi.product.version: Default string
dmi.sys.vendor: CHUWI INNOVATION LIMITED

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

This change was made by a bot.

[Woody (dub-burns)]

This happened to me as well.

[Igor (prigoryan)]

Confirmed on my Acer Aspire E5-511G. Also kernels 5.8.0 same troubles (Kubuntu 20.10)

[Igor (prigoryan)]

Here is possible solution: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1894017

[cipibad (cipibad)]

In my case the keyboard on the laptop was working on GRUB/Recovery mode but not on normal run.

I compared the kernel modules on the both runs and also did insmod/rmmod to have the same list without any difference.

Then I went and compare kernel cmdline (/proc/cmdline) and update arguments one by one and found the one causing the issue!

In my case it was acpi=noirq parameter to kernel boot. Removed it and now both keyboard and touchpad are working properly.