From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nils Faerber Subject: Problem with fan control Date: Sun, 9 Mar 2003 19:44:30 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20030309194430.04b511ac.nils@kernelconcepts.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi all! Playing around with thermal control and fan (ACPI 030228) I noticed the following in my dmesg: acpi_power-0363 [446] acpi_power_transition : Error transitioning device [CFAN] to D3 acpi_bus-0496 [445] acpi_bus_set_power : Error transitioning device [CFAN] to D3 acpi_thermal-0567 [444] acpi_thermal_active : Unable to turn cooling device [c159f1a8] 'off' I suspect this is not critical but nonetheless concerns me a little. Next I found that the thermal management seems a little strange. It does a pretty nice job controlling the CPU temperature using the CPU throtteling. But the performance settings are used in the wrong way. When my CPU gets hotter the performance setting is (re)set to maximum performance and all manual resetting it is reverted after some seconds. I am trying this on my P4M Asus L3800C where P0 and P1 mean about 50% less power usage and thus less temperature. Returning it to P0 does not make much sense to me... or is this a 'feature' of my ACPI BIOS? CU nils faerber -- kernel concepts Tel: +49-271-771091-12 Dreisbachstr. 24 Fax: +49-271-771091-19 D-57250 Netphen D1 : +49-170-2729106 -- ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf