Public bug reported:

This bug is similar to this one:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1683508

I file this as a separate one as suggested by @Kai-Heng Feng.

1.I am currently using Ubuntu 16.04.3, but I reproduced this bug on Linux Mint 
18.3 (based on 16.04 as well) and on Ubuntu-Mate 17.10. This is a fresh 
install, not a dist-upgrade.
My laptop is Lenovo Ideapad 320 A6 (very similar laptop configuration to 
Ideapad 320 ARB).CPU: AMD A6-9220, GPU: RADEON R4 

2. Affected Kernel version: 4.13.0-17
Elan Touchpad driver is not working correctly (?) 

3. I expected Touchpad to work normally, after installation.

4. Touchpad works for up to 60 seconds and than stops completely. My syslog is 
spamed with 
"elan_i2c i2c-ELAN060B:00: invalid report id data (ff)".
I can make touchpad stop working in about 10 seconds if I move mouse a lot. In 
attached syslog, You can see 938 error messages in span of 10 seconds. The more 
I move/click, the faster it freezes.

In this version of kernel xinput is detecting hardware. In earlier
versions (kernels 4.4*, 4.10*) there was no touchpad detected.

teo@widelec:~$ xinput 
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ PixArt USB Optical Mouse                  id=9    [slave  pointer  (2)]
⎜   ↳ Elan Touchpad                             id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ EasyCamera: EasyCamera                    id=10   [slave  keyboard (3)]
    ↳ Ideapad extra buttons                     id=11   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=13   [slave  keyboard (3)]

What I tried:
1. Kernel upgrades
2. Adding different set of options into grub configuration (i8042.reset, nopnp, 
nomux)
3. Switching on and off elan_i2c module. 
4. Changing xserver-xorg-input-libinput to xserver-xorg-input-synaptics and 
removing xserver-xorg-input-evdev

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.13.0-17-generic 4.13.0-17.20~16.04.1
ProcVersionSignature: Ubuntu 4.13.0-17.20~16.04.1-generic 4.13.8
Uname: Linux 4.13.0-17-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.13
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Dec  1 09:17:35 2017
InstallationDate: Installed on 2017-11-30 (0 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
SourcePackage: linux-hwe-edge
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-hwe-edge (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "syslog"
   https://bugs.launchpad.net/bugs/1735677/+attachment/5016882/+files/syslog

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https://bugs.launchpad.net/bugs/1735677

Title:
  Elan touchpad not working (elan_i2c invalid report id data)

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