From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Jenkins Subject: Re: Patch needed for ASUS EEEPC 701 2.6.27 (perhaps a regession) Date: Tue, 14 Oct 2008 10:12:41 +0100 Message-ID: <48F46289.5050508@tuffmail.co.uk> References: <48F0BD2D.8000001@tuffmail.co.uk> <20081013203648.GA3260@ucw.cz> <48F45D52.2010407@tuffmail.co.uk> <48F46053.6070306@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from ey-out-2122.google.com ([74.125.78.27]:31662 "EHLO ey-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753372AbYJNJMq (ORCPT ); Tue, 14 Oct 2008 05:12:46 -0400 Received: by ey-out-2122.google.com with SMTP id 6so740262eyi.37 for ; Tue, 14 Oct 2008 02:12:44 -0700 (PDT) In-Reply-To: <48F46053.6070306@gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Alexey Starikovskiy Cc: Alan Jenkins , Pavel Machek , Robert Goldner , linux-kernel , linux acpi , linux-stable@vger.kernel.org Alexey Starikovskiy wrote: > Alan Jenkins wrote: >> It could be a coincidence. But it's suspicious enough to advise >> caution. We know what the bug is, and we have a very nice workaround >> queued up now. There's no reason to test any more of these specific >> systems to destruction :). >> I did try re-installing off the vendor DVD and it was still broken. >> I fear I bought it from the wrong place to get sympathetic >> _frontline_ support / warrantee. I'm not interested in RMA back to >> Asus - too much work and downtime for a cheap system, when I have an >> easy workaround. I haven't noticed any problems with "noapic". >> >> >> The symptoms strongly suggest overflow in an event buffer or counter >> maintained by the Embedded Controller. So the EC firmware may have a >> bug, of the sort that results in "unspecified behaviour". A bug in a >> special purpose (read: not subject to wide testing) subsystem which >> has direct connections to things like frequency and voltage control. >> >> Hopefully I'm wrong, and I don't really know what I'm talking about >> here. >> >> Regards >> Alan >> > Did you try to disconnect all power resources (e.g. AC adapter and all > batteries and wait for some time)? Yes, I tried leaving it with AC + battery unplugged overnight. > May be there are some default settings in the BIOS? > This looks small enough to be a HW failure... I also upgraded the BIOS to the latest version. And tried the BIOS setup option to restore defaults. Maybe there is some more state, but it's not like a desktop where I can easily remove the CMOS battery. Thanks Alan