From: pioppo@ferrara.linux.it (Simone Piunno)
To: LM Sensors <sensors@stimpy.netroedge.com>,
LKML <linux-kernel@vger.kernel.org>
Cc: Greg KH <greg@kroah.com>, Jonas Munsin <jmunsin@iki.fi>, djg@pdp8.net
Subject: 2.6.10-mm2: it87 sensor driver stops CPU fan
Date: Thu, 19 May 2005 06:25:31 +0000 [thread overview]
Message-ID: <200501162332.14324.pioppo@ferrara.linux.it> (raw)
In-Reply-To: <20050115175545.743a39f9.khali@linux-fr.org>
Hi,
While we're at it, the fan speed sensor reports an absurd speed when the fan
is driven with very low but non-zero pwm values. For example, driving it
with pwm=2 I get speeds over 50K rpms, while of course the fan is stopped
(almost?). This could be just an hardware sensitivity problem in the sensor
chip, or a false measure triggered by fan vibration, but maybe you know
better.
/Simone
--
http://thisurlenablesemailtogetthroughoverzealousspamfilters.org
WARNING: multiple messages have this Message-ID (diff)
From: Simone Piunno <pioppo@ferrara.linux.it>
To: LM Sensors <sensors@stimpy.netroedge.com>,
LKML <linux-kernel@vger.kernel.org>
Cc: "Greg KH" <greg@kroah.com>, "Jonas Munsin" <jmunsin@iki.fi>,
djg@pdp8.net
Subject: Re: 2.6.10-mm2: it87 sensor driver stops CPU fan
Date: Sun, 16 Jan 2005 23:32:10 +0100 [thread overview]
Message-ID: <200501162332.14324.pioppo@ferrara.linux.it> (raw)
In-Reply-To: <20050115175545.743a39f9.khali@linux-fr.org>
Hi,
While we're at it, the fan speed sensor reports an absurd speed when the fan
is driven with very low but non-zero pwm values. For example, driving it
with pwm=2 I get speeds over 50K rpms, while of course the fan is stopped
(almost?). This could be just an hardware sensitivity problem in the sensor
chip, or a false measure triggered by fan vibration, but maybe you know
better.
/Simone
--
http://thisurlenablesemailtogetthroughoverzealousspamfilters.org
next prev parent reply other threads:[~2005-05-19 6:25 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-08 0:50 2.6.10-mm2: it87 sensor driver stops CPU fan Simone Piunno
2005-01-08 9:34 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-10 22:41 ` Simone Piunno
2005-05-19 6:25 ` Simone Piunno
2005-01-11 9:26 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-11 20:24 ` Jonas Munsin
2005-05-19 6:25 ` Jonas Munsin
2005-01-11 20:56 ` Jean Delvare
2005-01-11 22:41 ` Greg KH
2005-05-19 6:25 ` Greg KH
2005-01-11 21:04 ` Simone Piunno
2005-01-12 9:44 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-12 22:27 ` Jonas Munsin
2005-05-19 6:25 ` Jonas Munsin
2005-01-13 23:29 ` Greg KH
2005-05-19 6:25 ` Greg KH
2005-01-14 14:40 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-15 15:30 ` [PATCH 2.6] I2C: Allow it87 pwm reconfiguration Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-15 17:18 ` Simone Piunno
2005-05-19 6:25 ` Simone Piunno
2005-01-19 23:23 ` Greg KH
2005-05-19 6:25 ` Greg KH
2005-01-15 15:54 ` 2.6.10-mm2: it87 sensor driver stops CPU fan Simone Piunno
2005-05-19 6:25 ` Simone Piunno
2005-01-15 16:55 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-16 22:32 ` Simone Piunno [this message]
2005-05-19 6:25 ` Simone Piunno
2005-01-17 19:19 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-17 19:37 ` 2.6 Series Mem Mgmt Chris Bookholt
2005-01-17 19:56 ` Brian Gerst
2005-01-08 16:20 ` 2.6.10-mm2: it87 sensor driver stops CPU fan Jean Delvare
2005-01-08 19:23 ` Simone Piunno
2005-05-19 6:25 ` Simone Piunno
2005-01-10 19:23 ` Simone Piunno
2005-05-19 6:25 ` Simone Piunno
2005-01-10 19:34 ` Jean Delvare
2005-01-19 20:19 ` Nicolas Pitre
2005-05-19 6:25 ` Nicolas Pitre
2005-01-19 20:52 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-19 22:10 ` Nicolas Pitre
2005-05-19 6:25 ` Nicolas Pitre
2005-01-20 11:08 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-20 16:01 ` Nicolas Pitre
2005-05-19 6:25 ` Nicolas Pitre
2005-01-20 16:28 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
2005-01-20 21:19 ` Nicolas Pitre
2005-05-19 6:25 ` Nicolas Pitre
2005-01-21 6:46 ` Jean Delvare
2005-05-19 6:25 ` Jean Delvare
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