From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karol Kozimor Subject: Re: Kernel 2.4.23 passive cooling Date: Mon, 12 Jan 2004 20:04:18 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20040112190418.GA18452@hell.org.pl> References: <3ACA40606221794F80A5670F0AF15F8401720BEE@pdsmsx403.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Return-path: Content-Disposition: inline In-Reply-To: <3ACA40606221794F80A5670F0AF15F8401720BEE-4yWAQGcml64gGBtAFL8yw7fspsVTdybXVpNB7YpNyf8@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: "Yu, Luming" Cc: Nils Faerber , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Thus wrote Yu, Luming: > Try > #echo -n 0x04000000 > /proc/acpi/debug_layer > #echo -n 0xffffffff > /proc/acpi/debug_level I produced a log (http://hell.org.pl/~sziwan/thermal.log) using those switches. A bit of commentary: 18:57:59 -- I switch to passive cooling 18:59:07 -- Back to active 18:59:19 -- Forth to passive [no thermal events till 19:25:12, the readings are trigerred manually] After that, the temperature rocks up and down, as fan switch in at 3480 dK. This seems to be a DSDT bug after all, since the debug output doesn't seem suspicious and it even fails to notice the fans (which is normal, since the method to reevaluate the fans is internally called from within the GPE context). See http://bugme.osdl.org/show_bug.cgi?id=1185 for the DSDT and additional info. Best regards, -- Karol 'sziwan' Kozimor sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html