From owner-freebsd-acpi@FreeBSD.ORG Fri Sep 9 04:35:54 2005 Return-Path: X-Original-To: acpi@freebsd.org Delivered-To: freebsd-acpi@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 09C7B16A41F; Fri, 9 Sep 2005 04:35:54 +0000 (GMT) (envelope-from ume@mahoroba.org) Received: from ameno.mahoroba.org (gw4.mahoroba.org [218.45.22.175]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5F57143D46; Fri, 9 Sep 2005 04:35:53 +0000 (GMT) (envelope-from ume@mahoroba.org) Received: from localhost (IDENT:l4wUQRMzTJimMl/LerXRTr1XkGSutovJVkIWOzFq6if8LHCh7tWkev8171vFwgnz@localhost [IPv6:::1]) (user=ume mech=CRAM-MD5 bits=0) by ameno.mahoroba.org (8.13.4/8.13.4) with ESMTP/inet6 id j894Ze1G070581 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 9 Sep 2005 13:35:40 +0900 (JST) (envelope-from ume@mahoroba.org) Date: Fri, 09 Sep 2005 13:35:40 +0900 Message-ID: From: Hajimu UMEMOTO To: Nate Lawson In-Reply-To: <4320D4EE.3020405@root.org> References: <20050908153235.BFA955D08@ptavv.es.net> <4320D4EE.3020405@root.org> User-Agent: xcite1.38> Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (=?ISO-8859-4?Q?Sanj=F2?=) APEL/10.6 Emacs/21.3 (i386--freebsd) MULE/5.0 (SAKAKI) X-Operating-System: FreeBSD 5.4-STABLE X-PGP-Key: http://www.imasy.or.jp/~ume/publickey.asc X-PGP-Fingerprint: 1F00 0B9E 2164 70FC 6DC5 BF5F 04E9 F086 BF90 71FE Organization: Internet Mutual Aid Society, YOKOHAMA MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0 (ameno.mahoroba.org [IPv6:::1]); Fri, 09 Sep 2005 13:35:41 +0900 (JST) X-Virus-Scanned: by amavisd-new X-Virus-Status: Clean X-Spam-Status: No, score=-5.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.0.4 X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on ameno.mahoroba.org Cc: acpi@freebsd.org Subject: Re: Another acpi_thermal nit X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Sep 2005 04:35:54 -0000 Hi, >>>>> On Thu, 08 Sep 2005 17:18:54 -0700 >>>>> Nate Lawson said: nate> Our acpi_thermal code switches between active and passive cooling nate> strategies when going off battery power. So it is likely that your nate> system only uses passive cooling so aggressively when offline. In current implementation, passive cooling is always enabled. But, I believe that _PSV has higher value than _ACx in usual. Thus, when AC is online, active cooling is preferred. My understanding is that passive cooling became active with AC online, then became AC offline during passive cooling is active in his case. I cannot understand why passive cooling is active so aggressively even when AC online. I suspect that his laptop doesn't have any fan, or his fan couldn't be active due to some reason. Sincerely, -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan ume@mahoroba.org ume@{,jp.}FreeBSD.org http://www.imasy.org/~ume/