touchpad not working. MODEL - Asus X550LC

[Arindam Pradhan]

hardware info $ dmidecode output >> http://pastebin.com/UzQyczGe

The touchpad is not working. I have used ubuntu 12.04 , 13.10, 14.10 , and many environments too. It never works.
I feel there is some bios issues.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-45-generic 3.16.0-45.60~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
Uname: Linux 3.16.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: MATE
Date: Sun Aug 2 10:41:36 2015
InstallationDate: Installed on 2015-07-11 (21 days ago)
InstallationMedia: It
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)