Reboot instead of shut down

I have a Lenovo ThinkPad S430 laptop. Occasionally, when I want to shut down the machine, it would power off and a second later turn on again. Seems to happen more often when using the battery, but I am not sure. I am using XFCE and this happens when I select shut down from the Log out menu. This behaviour can be really annoying if you are on a hurry… Read the rest of this entry »