Public bug reported:

For a fresh installed Ubuntu 16 (and 18), touchpad doesn't work for
Elantech ELAN0618.

We have modified the struct elan_acpi_id, by adding ELAN0618 to the list
of the supported models (in the file drivers/input/mouse/elan_i2c_core.c
from the kernel source)

static const struct acpi_device_id elan_acpi_id[] = {
        { "ELAN0000", 0 },
        { "ELAN0100", 0 },
        { "ELAN0600", 0 },
        { "ELAN0602", 0 },
        { "ELAN0605", 0 },
        { "ELAN0608", 0 },
        { "ELAN0605", 0 },
        { "ELAN0609", 0 },
        { "ELAN060B", 0 },
        { "ELAN060C", 0 },
        { "ELAN0611", 0 },
        { "ELAN0618", 0 },
        { "ELAN1000", 0 },
        { }
};

and then built the kernel, and our problem solved.

** Affects: ubuntu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1778534

Title:
  Touchpad not working (Elantech ELAN0618)

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