touchpad not detected on Aspire ES 15

Touchpad simply not detected on "Aspire ES 15" also referred as "ES1-522-61GZ". there seems to be no existence of the touchpad at all. It was working fine on windows. After reading a bit and trying few commands found there https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_your_Touchpad_doesn.27t_work_at_all_.28No_response_from_the_Touchpad.29

I tried Ubuntu 16.04 live, 17.10 live and 17.04 installed. Most problem / solutions found online concerns buggy drivers & conf. but not much about undetected hardware. I have a wireless mouse so its not the most painful issue but this is annoying

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: xserver-xorg-input-synaptics 1.9.0-1ubuntu1
ProcVersionSignature: Ubuntu 4.12.0-11.12~lp1708852-generic 4.12.5
Uname: Linux 4.12.0-11-generic x86_64
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
CurrentDesktop: Unity:Unity7
Date: Sun Oct 8 16:55:39 2017
DistUpgraded: Fresh install
DistroCodename: zesty
DistroVariant: ubuntu
InstallationDate: Installed on 2017-09-16 (21 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
MachineType: Acer Aspire ES1-522
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.12.0-11-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2016
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.07
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: BELLEMERE_BE
dmi.board.vendor: Acer
dmi.board.version: V1.07
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.07:bd04/18/2016:svnAcer:pnAspireES1-522:pvrV1.07:rvnAcer:rnBELLEMERE_BE:rvrV1.07:cvnAcer:ct9:cvrChassisVersion:
dmi.product.family: CZL
dmi.product.name: Aspire ES1-522
dmi.product.version: V1.07
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.13.1+17.04.20170109-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.76-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.17.04.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.17.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.3-1ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.9.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.14-0ubuntu1
xserver.bootTime: Sun Oct 8 15:43:20 2017
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.3-1ubuntu1.1
xserver.video_driver: radeon