I indeed also have an Intel graphics chip (GMA 3100). I've found out that the problem disappears when I change my color depth in xorg.conf to 24 bit.
Section "Screen", DefaultDepth 24 I had changed it to 16 to speed up Compiz. Hopefully this will help other people too! -- No Window Borders when Desktop Effects Enabled https://bugs.launchpad.net/bugs/280785 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs