From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Renato S. Yamane" Subject: Re: 2.6.22 regression: thermal trip points Date: Fri, 03 Aug 2007 08:43:44 -0300 Message-ID: <46B314F0.1070503@mandic.com.br> References: <46B1988C.3090302@t-online.de> <200708021756.30776.lenb@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp-02.mandic.com.br ([200.225.81.133]:50826 "EHLO smtp-02.mandic.com.br" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760743AbXHCLns (ORCPT ); Fri, 3 Aug 2007 07:43:48 -0400 In-Reply-To: <200708021756.30776.lenb@kernel.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: Knut Petersen , linux-kernel@vger.kernel.org, Andrew Morton , trenn@suse.de, pavel@ucw.cz, mjg59@srcf.ucam.org, linux-acpi@vger.kernel.org Len Brown escreveu: > On Thursday 02 August 2007 04:40, Knut Petersen wrote: >> mainboard: AOpen i915GMm-hfs, AWARD BIOS >> cpu: Pentium-M 750 (0.8 to 1.86 MHz) >> openSuSE 10.2 with kernel 2.6.22.1 >> >> The cpu fan can not be controled by linux kernel. >> The BIOS will switch on the cpu fan a bit above 50 deg. Celsius. >> The active and passive trip points both are set to 50 deg. Celsius. >> Temperature of the idle cpu at 800 Mhz: 34 to 42 deg. C. >> The BIOS never changes the trip points. >> Cpufreq does work perfectly. On my Toshiba M45-S355 (Toshiba Bios, Pentium M 750 - 0.8 at 1.86GHz, Debian Etch) I see the same using Kernel 2.6.21.6 >> Previously there was the possibility to add something like >> >> echo "100:0:65:70:0" > /proc/acpi/thermal_zone/THRM/trip_points >> echo 2 > /proc/acpi/thermal_zone/THRM/polling_frequency >> echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor I never do that, but see below (Kernel 2.6.21.6): cat /proc/acpi/thermal_zone/TZCL/trip_points critical (S5): 105 C cat /proc/acpi/thermal_zone/TZCL/polling_frequency polling frequency: 2 seconds cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ondemand Regards, Renato S. Yamane