How to exit from magnified screen that moves with the mouse on Kubuntu?
Solution 1:
Kubuntu has a section called Desktop Effects. You can access it from System Settings under Desktop Behavior.
In the first section of Desktop Effects, you'll find Zoom. If you activate it, you'll be able to zoom your desktop.
Settings for the zoom feature can be accessed by clicking on the circled icon in the image above.
The default keyboard shortcut for zooming in is Meta+= pressed simultaneously. For zooming out, the default is Meta+- pressed simultaneously. Meta is the Super or Windows key.
Solution 2:
For me I had to hold Alt and use mouse scroll down.