Comment 29 for bug 1825499

I solved this issue by the next actions:
- run the touchpad-edge-detector tool from the libevdev-utils package
in my case command is sudo touchpad-edge-detector 96x46 /dev/input/event6
- then I pasted output of previous command to file /lib/udev/hwdb.d/60-evdev.hwdb
- and apply this changes by commands
sudo systemd-hwdb update
sudo udevadm trigger /dev/input/event*
like commented in head of redacted file

And problem solved.

In my case code is:

 EVDEV_ABS_00=1261:5717:46
 EVDEV_ABS_01=1001:4907:85
 EVDEV_ABS_35=1261:5717:46
 EVDEV_ABS_36=1001:4907:85

On my notebook touchpad is rectangular and not a square.