When I'm scrolling up or down in many different apps using the up/down arrow keys, if I hold the key down, then release it, I very often see the app continue to scroll, often for quite some time.  It seems that the keyboard buffer gets stuffed with key presses when the key is held down, and they all need to be processed before scrolling stops.  Can this be prevented? IOW, when I remove my finger from the key I'd like scrolling to stop.  I'm not sure at what level this problem is generated, that is to say is this Xfce's fault, or Debian's fault or Linux's fault.  However, some apps never have the problem so I don't know who to blame.  
How to prevent scrolling run-on
linux