Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S275414AbTHNRer (ORCPT ); Thu, 14 Aug 2003 13:34:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S275411AbTHNRen (ORCPT ); Thu, 14 Aug 2003 13:34:43 -0400 Received: from mail.jlokier.co.uk ([81.29.64.88]:54912 "EHLO mail.jlokier.co.uk") by vger.kernel.org with ESMTP id S275412AbTHNRdg (ORCPT ); Thu, 14 Aug 2003 13:33:36 -0400 Date: Thu, 14 Aug 2003 18:33:27 +0100 From: Jamie Lokier To: Alan Cox Cc: Mikael Pettersson , Ruben Puettmann , Linux Kernel Mailing List Subject: Re: 2.4.22 APM problems with IBM Thinkpad's Message-ID: <20030814173327.GB10889@mail.jlokier.co.uk> References: <20030813123119.GA25111@puettmann.net> <16186.14686.455795.927909@gargle.gargle.HOWL> <1060783884.8008.64.camel@dhcp23.swansea.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1060783884.8008.64.camel@dhcp23.swansea.linux.org.uk> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 796 Lines: 22 Alan Cox wrote: > On Mer, 2003-08-13 at 14:13, Mikael Pettersson wrote: > > With APIC support enabled (SMP or UP_APIC), APM must be constrained: > > DISPLAY_BLANK off > > CPU_IDLE off > > built-in driver, not module > > This isnt sufficient because some of the SMM traps off the FN-key > sequences also crash thinkpads if APIC is enabled. Basically *dont use > local apic* except on SMP. Is it feasible to disable the APIC during BIOS calls,? If that's feasible, it could fix the APM problem though not the SMM trap problem on Thinkpads. -- Jamie - 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/