From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bruno Friedmann Subject: Re: [PATCH] x86: Add reboot quirk for Dell Precision M4600 Date: Sat, 06 Aug 2011 20:18:52 +0200 Message-ID: <4E3D858C.5050804@ioda-net.ch> References: <20110727125651.GH3010@suse.de> <20110806065635.GE13220@elte.hu> <24c471f7-80f5-4102-a12b-d6245c8d0921@email.android.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from smtp.ioda.net ([87.98.140.96]:48509 "EHLO smtp.ioda.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753414Ab1HFS2u (ORCPT ); Sat, 6 Aug 2011 14:28:50 -0400 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: "H. Peter Anvin" , Ingo Molnar , Mel Gorman , Thomas Gleixner , Matthew Garrett , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org On 08/06/2011 05:31 PM, Len Brown wrote: > On Sat, 6 Aug 2011, H. Peter Anvin wrote: >=20 >> Ingo Molnar wrote: >> >>> * Mel Gorman wrote: >>> >>>> ACPI reboot does not work for Dell Precision M4600. Detect this >>>> machine via DMI and force the use of the PCI reboot method. >>>> =20 >>>> Reported-and-tested-by: Bruno Friedmann >>>> Signed-off-by: Mel Gorman >>>> --- >>>> arch/x86/kernel/reboot.c | 9 +++++++++ >>>> 1 files changed, 9 insertions(+), 0 deletions(-) >>> >>> Weird - ACPI is the default Windows method of reboot - how come it=20 >>> does not work on that box? Does Windows work around this specific=20 >>> machine (unlikely), or is our ACPI boot sequence not 100% compatibl= e=20 >>> with the Windows method (more likely IMO)? >> >> It seems almost all the affected machines are Dell, too... very odd,= no? >=20 > Dell website says that the M4600 is current, > and ships with Windows 7. It is a "mobile workstation", > so it is more likely to have a windows "feature" driver, > say, than Dell's servers. And this computer can be buyed with RedHat 6.0 by phone call. If you check the support website download and drivers you will some dri= vers for Redhat (mainly the new version of alsa) http://dell.to/r1IKhp >=20 > Matthew, > Did you do your reboot comopatibility test using Win7, > or something older? >=20 > BTW, it would be nice if ACPI incompatibilities and workarounds > somehow got stuck in the ACPI code rather than the arch code. > Unfortunately this kind sets a working reboot method instead > of disabling a non-working one -- so what it overrides has > changed when the default changed. >=20 > thanks, > -Len Brown, Intel Open Source Technolgy Center >=20 In any case, if you want anymore testing, and dumps of something, just = drop me an email and the howto get it formatted as you want it. Actually I'm in the desktop summit with the computer until 9th August n= ight. I don't know if we can find an owner of the M6600 (the 17") version to = get feedback about that hardware which share a lot with the M4600. Also Dell can upgrade their Bios. The only error or significant warning I saw in boot.msg is <3>[ 36.851649] sdhci-pci 0000:0b:00.1: Invalid iomem size. You may e= xperience problems. --=20 Bruno Friedmann Ioda-Net S=C3=A0rl www.ioda-net.ch openSUSE Member & Ambassador GPG KEY : D5C9B751C4653227 irc: tigerfoot -- 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