From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Frey Subject: ACPI throttling to death? Date: Mon, 4 Apr 2005 22:14:15 +0200 Message-ID: <200504042214.15648.jfrey@gmx.de> Reply-To: jfrey-Mmb7MZpHnFY@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi, I'm observing strange behaviour with a Gericom notebook running a 2.6.9 vanilla kernel with custom configuration. The processor used is a P III (Tualatin) with 1.2GHz (which is quite rarely used). It is *not* a mobile processor (no speedstep etc.), instead it supports 16 throttling levels. Sometimes (I guess when the machine is getting overheated - the notebook design is really bad and the fan is quite lousy) ACPI temperature monitor shows >70 degrees (Celsius) and the system starts throttling. Until here everything is fine IMO. But what happens next is that the systems slows down continuously (you can monitor the current throttling level going up and up) until it reaches the last level (12%). Soon after that the whole machine is locked up hard, display still showing the current graphics. I guess it throttled to a "deathly" 0%... Is this more a linux acpi problem or a fault in this particular machine? What could be done about it? how can I debug further? Thanks for any hints, jan -- Jan Frey jfrey-Mmb7MZpHnFY@public.gmane.org ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click