[ltp] How to improve battery life on Thinkpad X60s

[Florian Manschwetus]

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Ari El schrieb:
> Interesting, how do you shut down one core?
cat /sys/devices/system/cpu/cpu1/online
echo 0 > /sys/devices/system/cpu/cpu1/online
echo 1 > /sys/devices/system/cpu/cpu1/online

florian
> 
> 
> 
> Florian Manschwetus wrote:
>> Ari El schrieb:
>>>
>>> John Fremlin-2 wrote:
>>>> Martin Aumueller <aumuell@reserv.at> writes:
>>>>
>>>>> See below what Florian Reitmair wrote on the matter a couple of days
>>>>> ago
>>>>> (6. 
>>>>> Sep) on this mailing list. Search the archive (e.g. at 
>>>>> http://marc.theaimsgroup.com/?l=linux-thinkpad&r=1&w=2) for viewing the
>>>>> whole 
>>>>> thread.
>>>> Thanks for the link. However, as all the devices he was tuning to
>>>> lower the power of were disabled in my configuration it does not help
>>>> -- except perhaps for CPU undervolting, but I doubt that MS Windows
>>>> does this?
>>>>
>>>> I am curious to discover which component it is that MS Windows can
>>>> power down and Linux cannot. It feels like whatever is under the "IBM"
>>>> logo on the right hand side of the fingerprint reader.
>>>>
>>>> Any suggestions?
>>>>
>>>> [...]
>>>> -- 
>>>> The linux-thinkpad mailing list home page is at:
>>>> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
>>>>
>>>>
>>> did you find out the cause of the heat below to the logo? I was wondering
>>> if
>>> winxp is undervolting the cpus. Or something else. I asked the dev of
>>> linux-phc and he is more of the opinion on winxp not undervolting but
>>> lowering the FSB freq or something else. I keep wondering about this and
>>> a
>>> bit disappointed with  battery life under linux for my x60s. 
>>> i keep looking for solutions, and a bit ashamed of using winxp because of
>>> the amazing 8h to 9h i get (just word processor), myself beeing a linux
>>> fan.
>>>
>> my t60 2007-63G reaches under linux bravously the 4h lifetime border, i
>> use core disabling, smart (not full) dimmed display, ipw3945 battery
>> mode (enabled and used wlan), ati battery mode, ondemand governor
>>
>> florian
>>
>>  
>>
> 


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