From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: ACPI Exception (evregion-0422): AE_ERROR, Returned by Handler for [PCI_Config] [20090320] Date: Wed, 3 Jun 2009 03:44:53 +0100 Message-ID: <20090603024453.GA28009@srcf.ucam.org> References: <1243992286.9076.5.camel@rzhang-dt> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:54495 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751346AbZFCCo5 (ORCPT ); Tue, 2 Jun 2009 22:44:57 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Justin Mattock Cc: Zhang Rui , ACPI Devel Maling List , Linux Kernel Mailing List On Tue, Jun 02, 2009 at 07:11:41PM -0700, Justin Mattock wrote: > alright(Ill have to do that when I get a chance) > As for the error message after looking into it more today > I notice this message fired off as soon as I compiled > and loaded the nvidia module. It looks like the nvidia driver is triggering an evaluation of the _PS0 method on your graphics hardware. This ought to just power up your hardware. In the process it's trying to write to PCI configuration space, and some kind of error is being generated as a result - the debug output doesn't obviously make it possible to work out what. If your graphics hardware still works then it's not an issue, but there's the possibility that this is a Linux bug which might generate real problems in some other situation. -- Matthew Garrett | mjg59@srcf.ucam.org