touchpad is not working and there is no entry in the /proc/bus/input/devices

[forlearning purposes]

the laptop was originally a windows, by that time the touchpad suddenly stops. Then, we changed the OS to ubuntu. I thought that the issue will resolve but it did not. I have attached a file.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.11.0-34-generic 5.11.0-34.36~20.04.1
ProcVersionSignature: Ubuntu 5.11.0-34.36~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-34-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 16 18:42:55 2021
InstallationDate: Installed on 2021-08-27 (19 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-signed-hwe-5.11
UpgradeStatus: No upgrade log present (probably fresh install)