I see this issue with 12.04 and BIOS A08 on a Dell M4600 (similar machine but 15" form factor). Adding "reboot=pci" to the kernel command line fixes it; laptop reboots normally.
I see this issue with 12.04 and BIOS A08 on a Dell M4600 (similar machine but 15" form factor). Adding "reboot=pci" to the kernel command line fixes it; laptop reboots normally.