touchpad not fully working after resume from suspend

[Adrian]

Lenovo T480
The bug was present also in the previous kernel.

After resume from suspend, the touchpad scrolling (with two fingers) doesn't work any more.
The workaround is to reload the driver:

modprobe -r psmouse
modprobe psmouse

After this step, the use of the touchpad comes back to normal.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.3.0-46-generic 5.3.0-46.38~18.04.1
ProcVersionSignature: Ubuntu 5.3.0-46.38~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-46-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon Apr 6 18:58:39 2020
InstallationDate: Installed on 2018-04-05 (732 days ago)
InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
SourcePackage: linux-signed-hwe
UpgradeStatus: Upgraded to bionic on 2018-08-22 (593 days ago)

[Adrian (adrianf0)]

The workaround can be scripted:

https://askubuntu.com/questions/1083505/ubuntu-18-04-touchpad-not-fully-working-after-wake-from-suspend