Re: [ACPI-sppt] fan speed control techniques (again)

Ducrot Bruno <[email protected]>
Newsgroups gmane.linux.acpi.support
Message-ID <[email protected]>
> > > emmajane@debian:~$ cat /proc/acpi/thermal_zone/THRS/trip_points 
> > > critical (S5):           92 C
> > > passive:                 80 C: tc1=2 tc2=5 tsp=300 devices=0xc12c5a40 
> > 
> > There is a 'magical' thing in order to change the 80C, but I do not
> > remember the exact syntax.  Should be documented somewhere (at
> > least in the source :)
> 
> It's not that I want to change 80C, it's more that I want the fan to
> respect 80C. Unless I am misunderstanding how it's supposed to work. The
> fan controls must be related to the thermal state of the computer,
> somehow. Why I don't understand is why the fan thinks it needs to be on.
> Even now, after a night of being off and a (what I think is a) modest
> temperature of:
> debian:/proc/acpi# acpi -V
>      Thermal 1: ok, 46.0 degrees C
> 	 Thermal 2: ok, 42.0 degrees C
> 

Problem is that you don't have an active: line in the trip_points file.
Therefore, your fan is not controlled by ACPI.

I can take a look of the ASL if that can help you.

Cheers,

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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