Code:
linux-dxu6:~ # grep -i driver /etc/X11/xorg.conf
Driver "kbd"
Driver "synaptics"
Driver "mouse"
Driver "intel"
Nice to meet you!
So, it's too late to compare with or without the special effects?
But you're right, there's actually one difference: remember the small issue about the picture that doesn't fill the screen in full screen mode? It doesn't happen when the desktop effects are
activated!