Hi,
my first post here

I like to play old games but most of the games are running in 800x480 resolution and with the LCD widescreen displays xrandr can't set this display resolution (if it's possible please tell me how). The solution would be the zoom feature of kwin compositing effect. But the effect will move to the mouse cursor with for playing is very distractive. Most of the games will capture the mouse, but than the zoom effect will stutter, because it tries to move to the mouse cursor with is captured.

The solution is to deactivate this moving to the mouse cursor. But how can you do this, restrain the mouse to the zoomed area?