im a semi newbie , and im afraid to make a mess... plus i cant do a backup at 
the moment, maybe in the future when i have more time and an external hd.
anyway, i have tried to do

sudo modprobe -r elan_i2c
sudo modprobe elan_i2c

and then my  dmesg | grep -i elan is this:

lillo@lillo-X540SA:~$ dmesg | grep -i elan 
[   14.290318] i2c-ELAN1000:00 supply vcc not found, using dummy regulator
[   14.418179] input: Elan Touchpad as 
/devices/pci0000:00/808622C1:03/i2c-9/i2c-ELAN1000:00/input/input5
[  906.455349] elan_i2c i2c-ELAN1000:00: failed to read report data: -110
[ 1069.681827] i2c-ELAN1000:00 supply vcc not found, using dummy regulator
[ 1070.713682] elan_i2c i2c-ELAN1000:00: writing cmd (0x0005) failed: -110
[ 1070.713692] elan_i2c i2c-ELAN1000:00: device reset failed: -110
[ 1070.713702] elan_i2c i2c-ELAN1000:00: device initialize failed: -110
[ 1071.773741] elan_i2c i2c-ELAN1000:00: writing cmd (0x0005) failed: -110
[ 1071.773761] elan_i2c i2c-ELAN1000:00: device reset failed: -110
[ 1071.773778] elan_i2c i2c-ELAN1000:00: device initialize failed: -110
[ 1072.833816] elan_i2c i2c-ELAN1000:00: writing cmd (0x0005) failed: -110
[ 1072.833834] elan_i2c i2c-ELAN1000:00: device reset failed: -110
[ 1072.833852] elan_i2c i2c-ELAN1000:00: device initialize failed: -110
[ 1072.881767] elan_i2c: probe of i2c-ELAN1000:00 failed with error -110



** Changed in: xorg (Ubuntu)
       Status: Incomplete => New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1590432

Title:
  elan touchpad freezes randomly on ubuntu 16.04

Status in xorg package in Ubuntu:
  New

Bug description:
  when i visit some websites, with a lot of videos or animations, my
  touchpad freezes, and the only thing to do is ctrl alt print REISUB,
  because if I open a terminal and write sudo shutdown -r now, the
  computer freezes and i have to click the power button...

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu3
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  .tmp.unity_support_test.0:
   
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Wed Jun  8 15:12:37 2016
  DistUpgraded: Fresh install
  DistroCodename: xenial
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation Device [8086:22b1] (rev 21) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:10c0]
  InstallationDate: Installed on 2016-05-10 (28 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0bda:57de Realtek Semiconductor Corp. 
   Bus 001 Device 004: ID 13d3:3423 IMC Networks 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. X540SA
  ProcEnviron:
   LANGUAGE=it_IT
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed 
root=UUID=3d82a398-6d04-4ebd-9047-72877a62c81e ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/25/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X540SA.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X540SA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrX540SA.207:bd11/25/2015:svnASUSTeKCOMPUTERINC.:pnX540SA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX540SA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X540SA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20160325-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.12-1build2
  xserver.bootTime: Wed Jun  8 15:04:33 2016
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                1249 
   vendor                                     LGD
  xserver.version: 2:1.18.3-1ubuntu2.2

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