From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?RMOibmllbA==?= Fraga Subject: Linux doesn't shutdown (turn off) the computer Date: Fri, 16 Apr 2010 15:06:17 -0300 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Return-path: Received: from lo.gmane.org ([80.91.229.12]:50429 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757722Ab0DPSPF (ORCPT ); Fri, 16 Apr 2010 14:15:05 -0400 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1O2q4F-0008Q0-FL for linux-acpi@vger.kernel.org; Fri, 16 Apr 2010 20:15:03 +0200 Received: from 189.62.197.41 ([189.62.197.41]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 16 Apr 2010 20:15:03 +0200 Received: from fragabr by 189.62.197.41 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 16 Apr 2010 20:15:03 +0200 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org 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