A similar bug is filed here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/104868 .Read the comments below which may help you fix this bug such as adding acpi-hint.
** Changed in: acpi (Ubuntu) Sourcepackagename: None => acpi -- The power on HD, fan, CP is not off ufter the shutdown screen. Motherboard: Asus p5gd2-x, bios v.0105. https://bugs.launchpad.net/bugs/172273 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
