After a little discussion at ubuntuforums.org someone noticed that this problem is related to the driver build from ubuntu. I have installed the proprietary driver from nvidia and now the shadows are back.
I hope this helps to solve the problem. ** Changed in: nvidia-kernel-common (Ubuntu) Sourcepackagename: compiz => nvidia-kernel-common -- Compiz doesn't show shadows on Hardy https://bugs.launchpad.net/bugs/191508 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
