I also have this issue. The pointer becomes frozen about 1-2 sec, at
this time, it can move, but no actions work. My laptop: Xiaomi Mi
Notebook Pro rev.2

any touch on the touchpad generates a bunch of errors:

i2c_hid i2c-ETD2303:00: i2c_hid_get_input: incomplete report (14/65535)


This issue is relevant for kernel version 4.20.13. OS: Arch linux.

xinput list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ ETD2303:00 04F3:3083 Touchpad             id=11   [slave  pointer  (2)]
⎜   ↳ ETPS/2 Elantech Touchpad                  id=14   [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)]
    ↳ Video Bus                                 id=9    [slave  keyboard (3)]
    ↳ XiaoMi USB 2.0 Webcam: XiaoMi U           id=10   [slave  keyboard (3)]
    ↳ Intel HID events                          id=12   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=13   [slave  keyboard (3)]


Device:           ETD2303:00 04F3:3083 Touchpad
Kernel:           /dev/input/event6
Group:            6
Seat:             seat0, default
Size:             125x78mm
Capabilities:     pointer gesture
Tap-to-click:     disabled
Tap-and-drag:     enabled
Tap drag lock:    disabled
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   *two-finger edge 
Click methods:    *button-areas clickfinger 
Disable-w-typing: enabled
Accel profiles:   none
Rotation:         n/a

Device:           ETPS/2 Elantech Touchpad
Kernel:           /dev/input/event9
Group:            10
Seat:             seat0, default
Size:             125x81mm
Capabilities:     pointer gesture
Tap-to-click:     disabled
Tap-and-drag:     enabled
Tap drag lock:    disabled
Left-handed:      disabled
Nat.scrolling:    disabled
Middle emulation: disabled
Calibration:      n/a
Scroll methods:   *two-finger edge 
Click methods:    *button-areas clickfinger 
Disable-w-typing: enabled
Accel profiles:   none
Rotation:         n/a


journalctl -b | grep i2c | grep -v 'incomplete report'

мар 05 01:25:42 KarmicMiBook kernel: i2c_hid i2c-ETD2303:00: i2c-ETD2303:00 
supply vdd not found, using dummy regulator
мар 05 01:25:42 KarmicMiBook kernel: i2c_hid i2c-ETD2303:00: Linked as a 
consumer to regulator.0
мар 05 01:25:42 KarmicMiBook kernel: i2c_hid i2c-ETD2303:00: i2c-ETD2303:00 
supply vddl not found, using dummy regulator
мар 05 01:25:42 KarmicMiBook kernel: input: ETD2303:00 04F3:3083 Mouse as 
/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ETD2303:00/0018:04F3:3083.0001/input/input8
мар 05 01:25:42 KarmicMiBook kernel: input: ETD2303:00 04F3:3083 Touchpad as 
/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ETD2303:00/0018:04F3:3083.0001/input/input10
мар 05 01:25:42 KarmicMiBook kernel: hid-generic 0018:04F3:3083.0001: 
input,hidraw0: I2C HID v1.00 Mouse [ETD2303:00 04F3:3083] on i2c-ETD2303:00
мар 05 01:25:42 KarmicMiBook kernel: input: ETD2303:00 04F3:3083 Touchpad as 
/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ETD2303:00/0018:04F3:3083.0001/input/input13
мар 05 01:25:42 KarmicMiBook kernel: hid-multitouch 0018:04F3:3083.0001: 
input,hidraw0: I2C HID v1.00 Mouse [ETD2303:00 04F3:3083] on i2c-ETD2303:00

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https://bugs.launchpad.net/bugs/1798363

Title:
  i2c_hid i2c-ELAN1200:00: i2c_hid_get_input: incomplete report
  (16/65535)

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.740053] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.740764] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.741478] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.742205] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.742921] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.743624] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.744321] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.745026] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.745714] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  Oct 17 20:07:57 blurhy-FX503VD kernel: [ 1133.746420] i2c_hid 
i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535)
  ............

  Lots of these things

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: linux-image-4.18.0-10-generic 4.18.0-10.11
  ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
  Uname: Linux 4.18.0-10-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  blurhy     2908 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Oct 17 20:07:13 2018
  InstallationDate: Installed on 2018-10-10 (6 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20180927)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0b05:1869 ASUSTek Computer, Inc. 
   Bus 001 Device 003: ID 13d3:5666 IMC Networks 
   Bus 001 Device 002: ID 8087:0a2b Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. FX503VD
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-10-generic 
root=UUID=ad490863-aaf6-49d0-8508-514c07335e07 ro nouveau.runpm=0
  RelatedPackageVersions:
   linux-restricted-modules-4.18.0-10-generic N/A
   linux-backports-modules-4.18.0-10-generic  N/A
   linux-firmware                             1.175
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/03/2017
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: FX503VD.302
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: FX503VD
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No  Asset  Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrFX503VD.302:bd10/03/2017:svnASUSTeKCOMPUTERINC.:pnFX503VD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnFX503VD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: FX
  dmi.product.name: FX503VD
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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