From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maciej Rutecki Subject: Re: Fan speeds on HP nc6400 and nc8430 Date: Fri, 19 Jan 2007 18:32:16 +0100 Message-ID: <45B100A0.40305@gmail.com> References: Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms020700020501050806050901" Return-path: Received: from an-out-0708.google.com ([209.85.132.245]:14968 "EHLO an-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932812AbXASRc2 (ORCPT ); Fri, 19 Jan 2007 12:32:28 -0500 Received: by an-out-0708.google.com with SMTP id b33so272483ana for ; Fri, 19 Jan 2007 09:32:28 -0800 (PST) In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Pieter De Wit Cc: linux-acpi@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms020700020501050806050901 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Pieter De Wit napisa=C5=82(a): > Hi Luming, >=20 > This module was build into the kernel. After make it a module and makin= g > sure it's not loaded, I still see the problem. Here is a more detailed > problem: >=20 > If I leave ACPI to manage the system, thermal zone TZ4 stays around 80 > C. The moment I turn on fan C318, this zone *shoots* up to 100 C and > stays there, no matter what. This fan I can't turn off again. >=20 > Here is a cat of fans, thermal_zone status and temp. >=20 > status: on > status: off > status: on > status: on > status: on > status: on > status: on > state: active[2] > state: ok > state: ok > state: ok > state: ok > temperature: 65 C > temperature: 61 C > temperature: 54 C > temperature: 30 C > temperature: 100 C >=20 > This was taken during the compile of gcc. While not doing anything, the= > second zone drops to 54 C (currently at 61) Show: cat /proc/acpi/thermal_zone/TZ0/trip_points or change TZ0 to TZ1 For many HP notebooks first trip point is to low. To change manually, for example: echo "105:100:100:78:70:60:50" > /proc/acpi/thermal_zone/TZ0/trip_points echo 10 > /proc/acpi/thermal_zone/TZ0/polling_frequency Then I have: maciek@rutek:~$ cat /proc/acpi/thermal_zone/TZ0/trip_points critical (S5): 105 C active[0]: 78 C: devices=3D0xcf7aea40 active[1]: 70 C: devices=3D0xcf7ae9dc active[2]: 60 C: devices=3D0xcf7ae98c active[3]: 50 C: devices=3D0xcf7ae93c maciek@rutek:~$ cat /proc/acpi/thermal_zone/TZ0/polling_frequency polling frequency: 10 seconds --=20 Maciej Rutecki http://www.unixy.pl LTG - Linux Testers Group (http://www.stardust.webpages.pl/ltg/wiki/) --------------ms020700020501050806050901 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJHzCC 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