[ltp] Not able to modify /proc/acpi/ibm/fan

[cupaxe]

Thanks for pointing me to the excellent documentation (which I could
find it on my own) and the changes to the modprob.d settings.

I am all set for now. I did notice that on my T42p, the fan's maximum
speed is around 2600-2650 (after setting pwm1 to 255 and pwn1_enable
to 1). Is that normal?

Thanks,

Krishna

On Tue, Dec 1, 2009 at 3:05 PM, Holger Olbrich <h.olbrich@gmx.net> wrote:
> by default fan_control is "auto" and cannot be changed.
> the module thinkpad_acpi has to be loaded with the parameter fan_control=
=3D1
>
> /etc/modprobe.d/ibm-acpi:
> (...)
> options thinkpad_acpi fan_control=3D1
> (...)
>
> greetings
> holger
>
>
>
> am Dienstag 01 Dezember 2009 schrieb cupaxe:
>> I would like to do the following two things:
>>
>> - Keen my fan always running at the maximum speed.
>> - Keep my CPU running at the maximum speed.
>>
>> Since I had problems with my LCD, I have connected my thinkpad to a
>> external display and am using it as a desktop. So fan noise, battery
>> conservation, etc are a non-issue.
>>
>> I read in the thinkwiki documentation that
>>
>> echo level 7 > /proc/acpi/ibm/fan
>>
>> would make the fan rotate faster. The current output is:
>>
>> # cat /proc/acpi/ibm/fan
>> status: =A0 =A0 =A0 =A0 =A0 =A0 =A0 enabled
>> speed: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A02606
>> level: =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0auto
>>
>> But when I try to write to =A0/proc/acpi/ibm/fan, I get,
>>
>> bash: echo: write error: Invalid argument
>>
>> I tried my best searching for a way to modify /proc/acpi/ibm/fan but
>> wasn't able to get anywhere. So if this post has already been
>> answered, my sincerely apologies.
>>
>> Thanks,
>> Krishna
>
>
>
> --
>
>
>
> Jede Nation spottet =FCber die andern, und alle haben recht.
> Arthur Schopenhauer
>