Public bug reported:

Laptop msi gp62 7rd leopard http://www.linlap.com/msi_gp62_leopard_pro

After installing ubuntu 18.04, trackpad does not work at all. External
usb mouse does work, though.

$ xinput list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ PixArt HP USB Optical Mouse               id=6    [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=7    [slave  keyboard (3)]

$ cat /proc/version_signature
Ubuntu 4.15.0-20.21-generic 4.15.17

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-generic 4.15.0.20.23
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  roberto    1513 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed May 16 10:17:30 2018
InstallationDate: Installed on 2018-05-15 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: Micro-Star International Co., Ltd. GP62 7RD
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic 
root=UUID=fb3ba161-3d9b-4fc3-844d-e45adb61a7f1 ro acpi=off quiet splash 
vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-20-generic N/A
 linux-backports-modules-4.15.0-20-generic  N/A
 linux-firmware                             1.173
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/07/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: E16J9IMS.307
dmi.board.asset.tag: Default string
dmi.board.name: MS-16J9
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: REV:1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: N/A
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrE16J9IMS.307:bd11/07/2016:svnMicro-StarInternationalCo.,Ltd.:pnGP627RD:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-16J9:rvrREV1.0:cvnMicro-StarInternationalCo.,Ltd.:ct10:cvrN/A:
dmi.product.family: GP
dmi.product.name: GP62 7RD
dmi.product.version: REV:1.0
dmi.sys.vendor: Micro-Star International Co., Ltd.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug bionic

** Attachment added: "dmesg output"
   https://bugs.launchpad.net/bugs/1771535/+attachment/5140256/+files/dmesg

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https://bugs.launchpad.net/bugs/1771535

Title:
  synaptics trackpad not detected by libinput

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