I have installed Arch Linux with KDE 5.7 installed with touchpad support.

-The problem is that the cursor is locked/resets in one location (Cant reach edge of screen)
-Pointer disappears if let go
-Can't click at all (without pointer freaking out)
-Pointer is super jittery in general
-Settings says it did not find a touchpad

I think my pointer is high on crack and senile at the same time.
Please help. I had to use Ubuntu on a USB to post this.

Cursor so far over that you cannot get it on the screen- its possible your (control panel) display resolution/personalize is set too wide.
Jittery, disappears etc- sounds like you need to change your Mouse Property (control panel) settings on how it displays & functions-

tcorrell wrote:Cursor so far over that you cannot get it on the screen- its possible your (control panel) display resolution/personalize is set too wide.
Jittery, disappears etc- sounds like you need to change your Mouse Property (control panel) settings on how it displays & functions-

Thanks for the answer, this information was relevant for me too!