Comment 33 for bug 153204

(On my nvidia machines, with enabled unredirect fullscreen windows, VSync enabled:)
I find It very interesting, that if you have a fullscreen video running and you move with your mouse to get the control bar, the "flickering" is a frame with the desktop background.
And if your wait (control bar fades out), the "flickering" is a black frame.

So let me combine:
(1) compiz inactive > active : desktop background frame "flickering"
(2) compiz active > inactive : black frame "flickering"

I can live with nr (2), but nr (1) is really (eye-cancer) bad (especially if your have a bright background)
If its possible to turn the (1) flickering into a black frame, I would be satisfied.