Version:           SVN
OS:                Linux

I'm using two monitors with different resolutions, so KWin ends up having empty areas in the "big rectangle that fits both screens".

KWin doesn't prevent the mouse from entering these, so that for example a panel that's at the edge of a visible screen is not at teh edge of the "input rectangle", and thus much harder to hit.

One can also "lose" the mouse pointer in these areas, but that's much less of a problem in my daily work.

Reproducible: Always

Steps to Reproduce:
- setup kwin with two screens, different resolutions
- move mouse into "invisible area"

Actual Results:  
Mouse moves into invisible area

Expected Results:  
mouse should stick to the edge of the visible area

In KDE 3, this worked fine.