touchpad doesn't work at all

[Adel Tancsik]

Description: Ubuntu 18.04.4 LTS
Release: 18.04

Lenovo Ideapad 5 touchpad doesn't work at all. I use dual-boot, and in Windows 10, it works fine.
The Linux kernel version is 5.3.0.53.47.
When executing the `cat /proc/bus/input/devices` command, there is no touchpad device listed (nor when executing `xinput list`).

Laptop model: IdeaPad 5 15ARE05
Manufacturer of the Touchpad: (from what I could find about it) Microsoft (other info: hid-compatible)
When the symptom first appeared: since the beginning/Ubuntu 18.04 installation.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.3.0-53-generic 5.3.0-53.47~18.04.1
ProcVersionSignature: Ubuntu 5.3.0-53.47~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-53-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Jun 7 18:00:52 2020
InstallationDate: Installed on 2020-06-07 (0 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)