From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753963Ab1L1Xvx (ORCPT ); Wed, 28 Dec 2011 18:51:53 -0500 Received: from ogre.sisk.pl ([217.79.144.158]:42913 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752679Ab1L1Xvv (ORCPT ); Wed, 28 Dec 2011 18:51:51 -0500 From: "Rafael J. Wysocki" To: "Paul B. Henson" Subject: Re: Broken suspend to RAM on Asus P8P67-M motherboard (bad BIOS?) Date: Thu, 29 Dec 2011 00:55:04 +0100 User-Agent: KMail/1.13.6 (Linux/3.2.0-rc7+; KDE/4.6.0; x86_64; ; ) Cc: linux-kernel@vger.kernel.org, ACPI Devel Mailing List , Linux PM list References: <20111228231919.GI8711@bender.csupomona.edu> In-Reply-To: <20111228231919.GI8711@bender.csupomona.edu> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201112290055.04384.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Thursday, December 29, 2011, Paul B. Henson wrote: > I have an Asus P8P67-M Pro motherboard which fails to suspend to ram > under Linux yet suspends successfully under Windows 7. > > Under Windows 7, suspending results in the typical slowly blinking > power light, and the system wakes up correctly. > > Under Linux (tested with 3.0.7 and 3.1.6), on entering suspend mode the > power light turns off and stays off, it does *not* blink. On attempting > to wake up, the power light turns on momentarily and the fans spin up, > the power light goes off again and the fans spin down, then the power > light/fans come on but nothing happens, the box is completely wedged, > not even the reset button works, requiring a hard power cycle to bring > back. You may try to pass acpi_sleep=nonvs or acpi_sleep=sci_force_enable to the kernel command line and retest. > While working on the issue, I noticed the following suspicious ACPI > errors logged when doing a core test of STR: > > Dec 28 14:28:41 htpc-lr kernel: ACPI: Preparing to enter system sleep > state S3 > Dec 28 14:28:41 htpc-lr kernel: ACPI Error: [RAMB] Namespace lookup > failure, AE_NOT_FOUND (20110623/psargs-359) > Dec 28 14:28:41 htpc-lr kernel: ACPI Error: Method parse/execution > failed [\_PTS] (Node ffff88011e8a3a38), AE_NOT_FOUND > (20110623/psparse-536) Well, please attach the output of acpidump from your system. > There is also an ACPI complaint during boot: > > ACPI Error: [RAMB] Namespace lookup failure, AE_NOT_FOUND > (20110623/psargs-359) > ACPI Exception: AE_NOT_FOUND, Could not execute arguments for [RAMW] > (Region) (20110623/nsinit-349) > > The core test worked fine with no issues. I'm pretty sure the root cause > of the problem is that the system is not correctly entering S3 due to > these ACPI issues (given the lack of the usual blinking power light). > I'm guessing there's something broken in the BIOS and have opened a > support request with Asus. > > However, given it "works under Windows (tm)" 8-/, I don't anticipate a timely > response from Asus . > > Clearly Windows is working around whatever BIOS problem exists. If it's > not too ugly or distasteful, it would be nice if Linux could do so as > well, I hate it when Windows seems more robust ;). Well, the problem is we need to know what to do, which may be difficult (if not impossible) to figure out without the (already missing) vendor information. Thanks, Rafael