Oh, sorry, yes of course. This is a notebook, running debian testing, proprietrary nvidia driver and effects active in plasma.
This behaviour appears from time to time, and it is a little bit annoying when editing fields on a web page or writing a larger document in libreoffice. Thanks for your response. Best Hans > More info. please. Is this a desktop PC, a laptop, or what? If a desktop, > is the keyboard USB or PS/2? How about your mouse and its > operation...usb...ps/2...integrated with keyboard...touchpad...etc. Does > the mouse stop working as well? > > Mark