Re: fan change between 3.1.0-rc6 and commit b172e38

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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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