From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: Re: 2.6.21-rc5-mm2 -- ACPI problems (lid switch broken, always shows running from AC, plugging in AC hangs machine) Date: Fri, 30 Mar 2007 14:10:43 -0400 Message-ID: <200703301410.43857.lenb@kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:59328 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752965AbXC3SME (ORCPT ); Fri, 30 Mar 2007 14:12:04 -0400 In-Reply-To: Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Miles Lane Cc: Andrew Morton , LKML , linux-acpi@vger.kernel.org On Thursday 29 March 2007 17:49, Miles Lane wrote: > Hmm. I've reproduced these problems with vanilla 2.6.21-rc5, so the > latest acpi-git changes are off the hook.... I think the 1st message on this thread holds the answer: > ACPI: BIOS bug: multiple APIC/MADT found, using 2 > ACPI: If "acpi_apic_instance=0" works better, notify linux-acpi@vger.kernel.org Looking at your acpidump in http://bugzilla.kernel.org/show_bug.cgi?id=8283 clearly the 2nd table is broken (it is missing the SCI override) and that is why you get no ACPI interrupts. If Windows works on your machine -- ACPI events such as power button etc -- then that is proof that Windows doesn't use the 2nd MADT and I need to revert 09fe58356d148ff66901ddf639e725ca1a48a0af thanks, -Len