From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Hancock Subject: Re: Linux doesn't shutdown (turn off) the computer Date: Tue, 27 Apr 2010 17:50:05 -0600 Message-ID: <4BD7782D.4080608@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-pv0-f174.google.com ([74.125.83.174]:33093 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752635Ab0D0XuI (ORCPT ); Tue, 27 Apr 2010 19:50:08 -0400 Received: by pvb32 with SMTP id 32so124375pvb.19 for ; Tue, 27 Apr 2010 16:50:07 -0700 (PDT) In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: =?ISO-8859-1?Q?D=E2niel_Fraga?= Cc: linux-acpi@vger.kernel.org On 04/16/2010 12:06 PM, D=E2niel Fraga wrote: > 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 comput= er > off after shutdown. It *always* stay at the "System halted" screen an= d > 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. dmesg output from bootup would be useful. Is it actually using ACPI, or= =20 is it an APM system? I think you should see an "acpi_power_off called"=20 message if the kernel is actually trying to use ACPI to power off the=20 machine. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html