*** This bug is a duplicate of bug 1107850 ***
https://bugs.launchpad.net/bugs/1107850
It is not a compiz bug.
We only use the pixmaps provided to us by the application . if the
application renders a broken pixmap we just render that as well.
Supporting the damage sync protocol work happenin
Public bug reported:
Alan Pope of the Ubuntu-uk mailing list says this sounds like a Compiz bug.
There's about a half-second delay on loading a square segment at the top left
of the Firefox display every time it's launched. Any previous display continues
to show in this space during the load.