from https://certification.ubuntu.com/hardware/201709-25724/
IEI Integration Corp DELL081C:00 044E:121F Touchpad
part of result of xinput --list :
⎡ Virtual core pointer id=2[master pointer (3)]
⎜ ↳ Virtual core XTEST pointerid=4[slave pointer
Same problem on my Dell Latitude 7490 with Ubuntu 18.04
kernel 4.15.0-39-generic
kernel: [34885.632118] i2c_hid i2c-ELAN25B6:00: i2c_hid_get_input: incomplete
report (67/65535)
kernel: [ 345.340263] i2c_hid i2c-DELL081C:00: i2c_hid_get_input: incomplete
report (30/2)
with your kernel
