[xubuntu-users] No keyboard, no mouse. Inactivity timer drives me nuts!

[Wiebe van der Worp]

While working, using the mouse and or keyboard, everything works fine. 
However, after a short period of minutes without activity, mouse clicks 
and keyboard strokes are blocked. Whatever I click or type: nothing 
happens. The mouse can be moved and the keyboard reacts to numlock and 
capslock. If I do ctrl-alt-f1, I can use the keyboard. If I do 
ctrl-alt-f7, keyboard events and mouse events are blocked.

How can I kill the inactivity mechanism permanently? I don't need it. 
I've turned off screen savers, etc., trying to solve this.

Additional, it is a fresh install 20.04.1, I am building this system:
https://vanderworp.org/en/amd-pro-4650g-workhorse/

Installing 20.10 resulted in a kernel panic before even installing, grub 
was visible without an option to install or try, just the normal flavor 
(ubuntu and so on). So I fell back on 20.04.1 amd64.

Help, some thoughts, would really be appreciated. BIG THANKS!!