Comment 19 for bug 211318

confirmed bug.

OS: Kubuntu 8.04 after upgrade form 7.10
Video: Geforce 6600 LE
driver: nvidia

The system freezes with compyz enabled and disabled when trying to logout/shutdown the system (a black screen shows up).

once the black screen appears i can shut down the system by logging into virtual terminal using ctrl+alt+f1, and writing

   sudo shutdown -P now