Try booting with pci=nommconf to deal with the MMCONFIG problem. Between that and pci=nomsi, you should be set for booting with acpi on.
Cheers, Kyle -- Sata disk not identified during install (Ati sb600) https://launchpad.net/bugs/75055 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
