Re: How to control Thermal zone

["Francisco Figueiredo Jr." <fxjrlists-/E1597aS9LRfJ/NunPodnw@public.gmane.org>]

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Wang, Zhenyu wrote:
|>Hi guys,
|>
|>sorry if this has been already asked,
|>
|>but I'd like to know if is it possible to control thermal zone in order
|>to turn off my laptop fan when I get my login screen.
|>
|>I mean, The fan is being correctly turned on and off but only after
|>getting some threshold. When the laptop is turned on and my thermal zone
|>temp is 35C fan is kept on when it could be turned off.
|>
|>Any tips?
|>
|
|
| Have you loaded acpi fan module? Have you got any device under
/proc/acpi/fan?
| Try to trigger on/off to that device.
|

Hi Wang,

Yes, I get the following under /proc/acpi/fan:

FAN1, FAN2, FAN3.

I played triggering on off on fan.

In fact, I could turn them on! :) I even could check that FAN2 and 3 are
fan velocities as when I turned them on they did a much higher noise :)

But unfortunately I couldn't turn them off :(

I tried both echo off > /proc/acpi/fan/FAN1 and echo -n 0 >
/proc/acpi/fan/FAN1, but they only turned it on. I mean, when I do echo
off, it turns on. So I think that whatever I put is turning them on.

What should I echo to turn them off?


I think that if I learn how to turn it off by playing with acpi/fan it
would be very cool!!

Thanks in advance, Wang.


- --
Regards,

Francisco Figueiredo Jr.
Membro Fundador do Projeto MonoBrasil - MonoBrasil Project Founder Member
http://monobrasil.softwarelivre.org



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