From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755409AbYIRLWa (ORCPT ); Thu, 18 Sep 2008 07:22:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752769AbYIRLWX (ORCPT ); Thu, 18 Sep 2008 07:22:23 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:34008 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751626AbYIRLWW (ORCPT ); Thu, 18 Sep 2008 07:22:22 -0400 Date: Thu, 18 Sep 2008 13:06:35 +0200 From: Pavel Machek To: Andrew Paprocki Cc: LKML Subject: Re: ACPI "Soft-off" power button only rebooting system, not powering off Message-ID: <20080918110635.GF27832@elf.ucw.cz> References: <76366b180809162150o51701a1fk209af4e84ffc5674@mail.gmail.com> <20080917101809.GA4771@elf.ucw.cz> <76366b180809170533t6962f3d0qf67278b2e9ff6bd0@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <76366b180809170533t6962f3d0qf67278b2e9ff6bd0@mail.gmail.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 2008-09-17 08:33:50, Andrew Paprocki wrote: > On Wed, Sep 17, 2008 at 6:18 AM, Pavel Machek wrote: > > On Wed 2008-09-17 00:50:03, Andrew Paprocki wrote: > >> I have an AMD / Award BIOS based system which does not properly shut > >> off when I hold down the power button for 4 seconds. The BIOS is > >> configured to have "Soft-off" set to "Delay for 4 seconds" which is > >> supposed to power the machine off if the button is held that long. > >> > >> I first thought this could be a BIOS bug, but this *only* appears to > >> happen while Linux is running. If the computer is running WinXP, it > > > > Well, so the BIOS is broken. 4second hold should power down the > > machine regardless of the operating system. > > Yes, I agree.. I just find it strange that it works on the BIOS screen > as well as in GRUB, but as soon as Linux boots, it no longer works. > Since it works under WinXP, there must be some way to get it to work > properly from the OS side even it if means working around the bug > somehow. Try noapic/nolapic/nosmp etc... and ask your vendor to fix the bios ;-). -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html