This problem with shutdown is caused by acpi=off parameter. ACPI is responsible for powering your PC off, so when you disable ACPI, you have to turn your PC off manually. It's not a bug.
(But inability to boot with ACPI enabled is a kernel bug.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/828962 Title: new kernel doesn't boot in 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/828962/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs