FocalTech Touchpad not working after resuming from suspend

Question

My touchpad on Asus X455LF-WX055T works perfectly when I first boot Ubuntu but it does not work whenever I wake it up after suspending it.

Before I suspend, my xinput list contains PS/2 FocalTech FocalTech Touchpad:

xinput
⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Logitech K270                             id=10   [slave  pointer  (2)]
⎜   ↳ Logitech M315/M235                        id=11   [slave  pointer  (2)]
⎜   ↳ PS/2 FocalTech FocalTech Touchpad         id=15   [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)]
    ↳ Video Bus                                 id=8    [slave  keyboard (3)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ USB2.0 VGA UVC WebCam                     id=12   [slave  keyboard (3)]
    ↳ Asus WMI hotkeys                          id=13   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]

When i wake it up after suspending it, my xinput list does not contain PS/2 FocalTech FocalTech Touchpad but it was replaced(?) by AT Raw Set 2 keyboard id=15 [slave keyboard (3)] which was not present before I suspend:

xinput
⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Logitech K270                             id=10   [slave  pointer  (2)]
⎜   ↳ Logitech M315/M235                        id=11   [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)]
    ↳ Video Bus                                 id=8    [slave  keyboard (3)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ USB2.0 VGA UVC WebCam                     id=12   [slave  keyboard (3)]
    ↳ Asus WMI hotkeys                          id=13   [slave  keyboard (4)]
    ↳ AT Translated Set 2 keyboard              id=14   [slave  keyboard (3)]
    ↳ AT Raw Set 2 keyboard                     id=15   [slave  keyboard (3)]

What I have tried

From "Touchpad doesn't work after suspend"

I have tried creating a file /etc/pm/sleep.d/0000trackpad with the contents:

#!/bin/sh
case "$1" in
    resume)
        DISPLAY=:0.0 su USER -c '/usr/bin/synclient TouchpadOff=0' ;;
esac

and

#!/bin/sh
case "$1" in
    suspend|hibernate)
        modprobe -r psmouse ;;
    resume|thaw)
        modprobe psmouse ;;
esac

but both does not work.

From "How do I get the touchpad working on an Asus x450L?"

Adding a Kernel Boot Parameter psmouse.proto=bare in /etc/default/grub like so:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash psmouse.proto=bare

and then updating grub with sudo update-grub but still does not work.

My BIOS is also up-to-date.