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From: Guenter Roeck <guenter.roeck@ericsson.com>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] fan change between 3.1.0-rc6 and commit b172e38
Date: Tue, 27 Sep 2011 13:52:41 +0000	[thread overview]
Message-ID: <20110927135241.GB22520@ericsson.com> (raw)
In-Reply-To: <m339flbipr.fsf@jhcloos.com>

On Sat, Sep 24, 2011 at 07:53:12PM -0400, James Cloos wrote:
> Did something change in the f71889ed support between rc6 and today?
> 
> Up until rc6 my am3+phenom board ran its fan at about 800 Hz most of the
> time, with occasional bursts to 1200 Hz or so when under heavy load.
> 
> With b172e38 it runs at around 2048 Hz.  *Loudly*.
> 
> (The only fan monitored is connected via the board's cpufan socket, and
> is a 12cm 3-wire fan attached to a 12x12x6 (or so) cm heat sink.)
> 
> The cpu is running about 16 Kelvins colder than the in-case ambient,
> instead of around 2 Kelvins colder.
> 
> But the noise is worse than a window fan.
> 
> The only change was the reboot into the newer kernel.
> 
> I haven't run into the particular presentation before, but it seems
> worrysome.  Should I worry?
> 
> pwmconfig is not able to stop the fan, if that is relevant.
> 
I don't recall a relevant change, nor did I find one in the commit log.
Did pwmconfig ever work for you ?

Thanks,
Guenter

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  reply	other threads:[~2011-09-27 13:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-24 23:53 [lm-sensors] fan change between 3.1.0-rc6 and commit b172e38 James Cloos
2011-09-27 13:52 ` Guenter Roeck [this message]
2011-09-27 23:37 ` James Cloos
2011-09-28 13:04 ` Jean Delvare
2011-10-25 22:12 ` James Cloos

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