I have the same problem on a Dell Inspiron 1520. Disabling splash solves it.
Release: Ubuntu 9.04 final Architecture: amd64 -- Jaunty & Interpid: won't power off on shutdown or reboot https://bugs.launchpad.net/bugs/326988 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