'Microsoft Touchpad' not detected in 'Maingear Vector Pro MG-VCP17I-3070' in kernel 5.4.0-99-generic

[Jen-Hung Ho]

I installed dual system (Window 10 and Ubuntu 18.04) on my MAINGEAR Vector Pro MG-VCP17I-3070 laptop. However, the touchpad worked in Window 10, but not in Ubuntu 18.04. I tried both 'xinput list' and 'cat /proc/bus/input/devices', but 'touchpad 'is not both of them. Window 10 shows that the manufacturer of the touchpad is Microsoft.

The attached file is the result of 'cat /proc/bus/input/devices'

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-99-generic 5.4.0-99.112~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-99.112~18.04.1-generic 5.4.162
Uname: Linux 5.4.0-99-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Feb 22 13:35:47 2022
InstallationDate: Installed on 2022-02-21 (1 days ago)
InstallationMedia: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64 (20210915)
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)