This bug is present on an Asus FX504G. It does not matter if one is running Synaptics or libinput. The error message will eventually cause the touchpad to stop operating completely. It will start working again after a period of time. However, to have it operate again immediately, I have to type: rmmod hid-multitouch && modprobe hid-multitouch in a root terminal.
This is on Manjaro 18.03 running Gnome 3.30.2 with kernel: Linus FX504DG 4.20.11-1-MANJARO #1 SMP PREEMPT Wed Feb 20 23:19:36 UTC 2019 x86_64 GNU/LINUX cat /proc/bus/input/devices I: Bus=0018 Vendor=04f3 Product=3090 Version=0100 N: Name="ELAN1200:00 04F3:3090 Touchpad" P: Phys=i2c-ELAN1200:00 S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN1200:00/0018:04F3:3090.0004/input/input17 U: Uniq= H: Handlers=event13 mouse1 B: PROP=5 B: EV=1b B: KEY=e520 10000 0 0 0 0 B: ABS=2e0800000000003 B: MSC=20 dmesg | grep -i i2c-ELAN [ 3.391117] i2c_hid i2c-ELAN1200:00: i2c-ELAN1200:00 supply vdd not found, using dummy regulator [ 3.391136] i2c_hid i2c-ELAN1200:00: Linked as a consumer to regulator.0 [ 3.391139] i2c_hid i2c-ELAN1200:00: i2c-ELAN1200:00 supply vddl not found, using dummy regulator [ 3.603805] input: ELAN1200:00 04F3:3090 Mouse as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN1200:00/0018:04F3:3090.0004/input/input13 [ 3.603874] input: ELAN1200:00 04F3:3090 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN1200:00/0018:04F3:3090.0004/input/input14 [ 3.603943] hid-generic 0018:04F3:3090.0004: input,hidraw3: I2C HID v1.00 Mouse [ELAN1200:00 04F3:3090] on i2c-ELAN1200:00 [ 3.734501] input: ELAN1200:00 04F3:3090 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN1200:00/0018:04F3:3090.0004/input/input17 [ 3.734614] hid-multitouch 0018:04F3:3090.0004: input,hidraw3: I2C HID v1.00 Mouse [ELAN1200:00 04F3:3090] on i2c-ELAN1200:00 [ 56.806547] i2c_hid i2c-ELAN1200:00: i2c_hid_get_input: incomplete report (16/65535) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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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