Asus X550DP touchpad doesn't working after ubuntu installation

[Vianca Adjie Dwi Putra]

My Laptop's Touchpad doesn't working after finished installation.
the series of Laptop is Asus X550DP AMD A10 APU

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-34-generic 3.16.0-34.47~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-34.47~14.04.1-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.8
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Apr 14 17:52:46 2015
InstallationDate: Installed on 2015-04-14 (0 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)

[penalvch (penalvch)]

Vianca Adjie Dwi Putra, thank you for reporting this and helping make Ubuntu better. Could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1417450

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]