RE: Fan speeds on HP nc6400 and nc8430

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Hi Luming,

This module was build into the kernel. After make it a module and making
sure it's not loaded, I still see the problem. Here is a more detailed
problem:

If I leave ACPI to manage the system, thermal zone TZ4 stays around 80
C. The moment I turn on fan C318, this zone *shoots* up to 100 C and
stays there, no matter what. This fan I can't turn off again.

Here is a cat of fans, thermal_zone status and temp.

status:                  on
status:                  off
status:                  on
status:                  on
status:                  on
status:                  on
status:                  on
state:                   active[2]
state:                   ok
state:                   ok
state:                   ok
state:                   ok
temperature:             65 C
temperature:             61 C
temperature:             54 C
temperature:             30 C
temperature:             100 C

This was taken during the compile of gcc. While not doing anything, the
second zone drops to 54 C (currently at 61)

Thanks for the time,

Pieter

-----Original Message-----
From: Luming Yu [mailto:luming.yu@xxxxxxxxx] 
Sent: 2007/01/19 10:14
To: Pieter De Wit
Cc: linux-acpi@xxxxxxxxxxxxxxx
Subject: Re: Fan speeds on HP nc6400 and nc8430

Do you have psmouse module loaded ?
(i.e. CONFIG_MOUSE_PS2=m)
If yes, Please try remove it, and re-test it.

Thanks,
Luming

On 1/19/07, Pieter De Wit <Pieter.DeWit@xxxxxxxxxxxxx> wrote:
> Hello List,
>
> I have noted that the fan speed on "idle" is much higher in Linux 
> compared to XP. I have also noted that once fans are turned on, they 
> never seem to return to the off state. I am currently using the 2.6.18

> kernel from Gentoo (gentoo-sources-r6). I was wondering if there is a 
> way I can lower the fan speed, or even assist the devs to get info 
> regarding these notebooks (if any is needed).
>
> Thanks,
>
> Pieter
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