THIS IS LIKE THE 7TH TIME I HAVE TRIED TO WRITE THIS.
Anyway, I recently upgraded my KDE Plasma version to 5.1.1, and the most annoying thing is that within 5 minutes or so, the computer would freeze, I could still move the mouse, and if idle it will dim the screen, but I can't do anything when it is frozen, losing most of my work. Does anyone know if this is a bug or is there something wrong with my hardware?

Are you using the intel driver?