I've been using Linux since 1997 and started with Slackware 3.1 with an AT case. Then some time after, I upgraded the system to a ATX case and ATX power supply of course. Unfortunately Linux never turn the computer off after shutdown. It *always* stay at the "System halted" screen and I have to press for 4 seconds the power button for the computer to turn off. With Windows everything works perfectly... I tested this Linux system with 3 different motherboards and the problem remains. So, is it a ACPI issue, configuration? What logs or information do you need to properly debug this? Now I'm using Linux 2.6.33. Thanks. Ps: my question is: what happens after the "System halted" message? The kernel sends a signal to the motherboard, BIOS, whatever to shutdown the computer? Maybe something is blocking it? Thanks. -- Linux 2.6.33: Man-Eating Seals of Antiquity -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html