Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753817Ab1GAASM (ORCPT ); Thu, 30 Jun 2011 20:18:12 -0400 Received: from terminus.zytor.com ([198.137.202.10]:50523 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751917Ab1GAASL (ORCPT ); Thu, 30 Jun 2011 20:18:11 -0400 Message-ID: <4E0D1239.70205@zytor.com> Date: Thu, 30 Jun 2011 17:18:01 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc15 Thunderbird/3.1.10 MIME-Version: 1.0 To: Matthew Garrett CC: Peter Chubb , linux-kernel@vger.kernel.org Subject: Re: Acer Aspire One now hangs on reboot/shutdown References: <20110622194324.GD8861@srcf.ucam.org> <4E0CC06E.7040204@zytor.com> <20110630235802.GA18584@srcf.ucam.org> In-Reply-To: <20110630235802.GA18584@srcf.ucam.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 883 Lines: 24 On 06/30/2011 04:58 PM, Matthew Garrett wrote: > On Fri, Jul 01, 2011 at 09:10:33AM +1000, Peter Chubb wrote: > >> t, p and a all result in a machine hang with the power light on, the >> backlight off, and no apparent activity anywhere. > > Having PCI reboot be broken does make me wonder whether there's > something about the hardware state that confuses it. > It might be a RESET versus INIT difference... if the "PCI reboot" (which is what "ACPI reboot") points to, it might end up pulling INIT, whereas the keyboard controller pulls RESET. RESET would forcibly initialize the hardware state of the machine, obviously... -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/