Having the same problem with a Athlon X2 64 with a NVIDIA quadro fx card. Everything works fine except when I leave the computer idle for a long period (+1h). When I come back both screens are white but I can still move the cursor.
Workaround found: I change TTY (ctrl+alt+f1) and kill compiz from command line, which is taking 100% of my CPU. Then I switch back to graphical interface and re- enable desktop effect.. If someone need more infos on my system just give me the command to execute, I'll provide the infos. -- compiz freezes x server after screensaver kicks in https://bugs.launchpad.net/bugs/103400 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