[ltp] Re: tpfand configuration for an X200s
Volker Krueger
linux-thinkpad@linux-thinkpad.org
Fri, 05 Dec 2008 12:08:22 +0100
Hi Christoph,
do you have the lenovo drivers for the powermanagement installed?
could you check the fan without the drivers?
best,
Volker
Christoph Bier wrote:
> Volker Krüger schrieb am 05.12.2008 08:25:
>
>
>> Hi all,
>>
>> could it be possible that lenovo's powermanagement is overriding
>> the bios fan control (among other things)?
>>
>> could someone investigate if there is a difference in power
>> consumption between the ordinary visa (w/o lenovo drivers) and
>> lenovo's vista (with lenovo drivers)?
>>
>> It could be that the ordinary vista uses as much power as linux,
>> right?
>>
>> Another possibility is that the bios is used differently by vista
>> and by linux: The bios might very well have a bug which might not
>> come apparent under vista... How much does the X200s consume
>> under XP or win2000?
>>
>
> I just installed PFControl under Vista and the fan isn't constantly
> running. Now it runs at about 2300--2400 RPM. Temperatures:
>
> CPU: 36°C
> Board: 38°C
> GPU: 34°C
> Bus: 36°C
> Mini PCI: 39°C
>
> And right now the fan stopped! With the temperatures above ... But
> even with
>
> CPU: 43°C
> Board: 38°C
> GPU: 38°C
> Bus: 38°C
> Mini PCI: 40°C
>
> the fan is still not running. For about 20 minutes now and I used
> the thinkpad for searching menus, viewing pictures etc. (it's my
> first Windows PC since Windows 95 ;-)). And I did no power
> management fine tuning! Only WLAN, Bluetooth and WWAN are
> disabled---but they are, too, under Linux. PFControl shows that the
> fan is controlled by the BIOS controller. I guess there's potential
> improvement under Linux.
>
> Best
> Christoph
>
--
Dr. Ing. Volker Krüger
CVMI-CIT
Aalborg University
Lautrupvang 15
3750 Ballerup
Denmark
phone: +45-9940-2495
www.cvmi.aau.dk/~vok