Just braindumping here for Neil. The problem is definitely that the pixmap of the menu is being lost before the window is destroyed or hidden. The same thing happens with firefox menus too. Compiz will keep the old pixmap around for as long as possible when the window goes away (since the referenced memory is still somewhat safe to use directly, even if attempting to access the pixmap data will fail through X)
-- Sam Spilsbury -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/687567 Title: Global menu causes white "flashes" when scrubbing/moving with mouse fast over menus -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs