touchpad not working and splash screen flickers while startup

[Jppande]

the touchpad is not working at all. and the splash screen is flickering at startup that stops flickering after hitting a key in keyboard.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-67-generic 3.16.0-67.87~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-67.87~14.04.1-generic 3.16.7-ckt24
Uname: Linux 3.16.0-67-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Mar 29 23:50:02 2016
InstallationDate: Installed on 2015-04-20 (344 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)