Management of Thermal

[Alexandre "Sunny" Kovalenko]

On Thu, 2007-10-11 at 11:02 +1000, Norberto Meijome wrote:
> On Mon, 08 Oct 2007 15:41:16 +0200
> Lars Engels <lme at FreeBSD.org> wrote:
> 
<snip>
> 
> the last one was a great one. It describes the latest support for fan control
> in linux' acpi_ibm. Including how to enable it in experimental mode for older
> kernels (such as the one Knoppix runs). so, i tried this :
> 
> http://www.thinkwiki.org/wiki/How_to_control_fan_speed#Using_a_stock_kernel
> 
> and it worked a treat.
> 
> The fan kicked off nicely... and seriously aggressively
> when disengaged (similar to how the fan goes when you just power up the laptop).
> So it seems these guys + gals @ penguin land are onto something good.
> 
> Does anyone know if their work can be leveraged for *BSD ? or maybe this
> support is already in -CURRENT?

I have not read the link, so maybe there is something else there, but as
far as fan control:

RabbitsDen# sysctl dev.acpi_ibm.0.fan=0
dev.acpi_ibm.0.fan: 1 -> 0
RabbitsDen# sysctl dev.acpi_ibm.0.fan_level=7
dev.acpi_ibm.0.fan_level: 1 -> 7
RabbitsDen# sysctl dev.acpi_ibm.0.fan_speed
dev.acpi_ibm.0.fan_speed: 4080
RabbitsDen# sysctl dev.acpi_ibm.0.fan_level=3
dev.acpi_ibm.0.fan_level: 7 -> 3
<after 10 seconds>
RabbitsDen# sysctl dev.acpi_ibm.0.fan_speed
dev.acpi_ibm.0.fan_speed: 3310

RabbitsDen# kldstat | grep ibm
 5    1 0xc08ac000 4f74     acpi_ibm.ko

System is: FreeBSD 7.0-CURRENT #0: Sun Sep 30 11:54:51 EDT 2007  

Hardware is: ThinkPad X60 (one of the first ones, with 32-bit dualcore
CPU) -- sorry do not want to pry it from the dock -- if specific model
is important, let me know and I will look.   

> 
> Cheers,
> B
> _________________________
> {Beto|Norberto|Numard} Meijome
> 
> "Build a system that even a fool can use, and only a fool will want to use it."
>    George Bernard Shaw
> 
> I speak for myself, not my employer. Contents may be hot. Slippery when wet.
> Reading disclaimers makes you go blind. Writing them is worse. You have been
> Warned.
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-- 
Alexandre "Sunny" Kovalenko