On my system with an Intel chipset all over I have had problems shuting down the machine properly. It never finished the shutdown process and I had to cut the power to the machine.
I finally found the solution. Add the following to /etc/default/halt at the end of the file:
Now it works!!
howtos/shutdown_not_powering_off.txt · Last modified: d/m/Y H:i by 127.0.0.1