From owner-freebsd-questions@freebsd.org Sun Jul 17 03:48:14 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4AD9FB97249 for ; Sun, 17 Jul 2016 03:48:14 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) Received: from alogt.com (alogt.com [69.36.191.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 2D4D31BDD for ; Sun, 17 Jul 2016 03:48:14 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=alogt.com; s=default; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=I+gKDICgDRhqt77BjSCpFwJOSlXsfqktDKtFb2IDg9A=; b=Y+ryll2/60ppyLXnY51rBX4Pbs yXrcF77s8jefnCYs1L7FzNrp2s9IX9nChWjgxWpGEwrNBo4liI045e8N9GxFxo54oJdy2UXexJSwZ XozWldyfJmOY0Ef9eRP7hOLD0+FfOI55S8D4f3v5NP8Wc7ZK9m0+s0G3hpTNFqhDeSfo=; Received: from [114.120.239.210] (port=45028 helo=X220.alogt.com) by sl-508-2.slc.westdc.net with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1bOcR0-002JeP-3f; Sat, 16 Jul 2016 21:08:02 -0600 Date: Sun, 17 Jul 2016 11:07:56 +0800 From: Erich Dollansky To: Yubin Ruan Cc: Polytropon , freebsd-questions@freebsd.org Subject: Re: High CPU temperature and high fans level Message-ID: <20160717110756.27e3d480@X220.alogt.com> In-Reply-To: <578AC4E9.7080108@gmail.com> References: <20160717002508.591a61ce.freebsd@edvax.de> <578AC4E9.7080108@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - sl-508-2.slc.westdc.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - alogt.com X-Get-Message-Sender-Via: sl-508-2.slc.westdc.net: authenticated_id: erichsfreebsdlist@alogt.com X-Authenticated-Sender: sl-508-2.slc.westdc.net: erichsfreebsdlist@alogt.com X-Source: X-Source-Args: X-Source-Dir: X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jul 2016 03:48:14 -0000 Hi, On Sun, 17 Jul 2016 07:36:09 +0800 Yubin Ruan wrote: > On 2016=E5=B9=B407=E6=9C=8817=E6=97=A5 06:25, Polytropon wrote: > > On Sun, 17 Jul 2016 00:06:07 +0200, David Demelier wrote: =20 > >> Hello, > >> > >> I was trying FreeBSD 10.3 on my laptop (hp probook 4510s) and was > >> surprised to see high CPU temperature and fans running high. > >> > >> No apps running, I get a temperature of 57C in > >> dev.cpu.x.temperature and fans run high (not able to get rpms). > >> > >> On a 4.6.3 Linux distro I get an average of 48C and fans are quite > >> low. > >> > >> Both tests were kept in tty. No Xorg running just a boot and user > >> login in console. > >> > >> Do you have any clue? =20 > > > > Did you enable powerd? It can slow down the CPU when the system > > is idle, and increase the CPU speed when needed. This should have > > an effect on CPU temperature and fan speed. > > =20 >=20 > How to check whether the powerd configuration is right ? >=20 you need something like powerd_enable=3D"YES" powerd_flags=3D"-a hiadaptive -b hiadaptive" # set CPU frequency in /etc/rc.conf Check the manual for the possible flags. This are settings which do not provide the best result on a typical desktop but are a good start.=20 Erich