This also affects me. I've found that sometimes clicking between desktop and windows makes them show up again. Also switching between desktops sometimes wakes it up. But it's definitely a weird and frustrating bug to experience.
* Ubuntu 12.10 * nvidia-experimental-304 (304.48-0ubuntu1) * xserver-xorg-core (2:1.13.0-0ubuntu6.1) * compiz (1:0.9.8.6-0ubuntu1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/952887 Title: Transparent terminal windows and black backgrounds in other windows after kernel update To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia-drivers-ubuntu/+bug/952887/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
