I am running Ubuntu 12.04 (32-bit) on a Dell Vostro 1700 laptop. When I click 'shut down' option on top bar far right button, it closes Ubuntu but won't shut down. It just goes to a low-power state, from which I have to long-press the physical power button until I hear the hard drive spin down and lock.
Same thing happens if I tell it to restart. I can provide any system information needed to help troubleshoot this problem, but I have no idea where to begin.