Ubuntu

Dual-core performance change on battery

Asked by Daann

Is it possible to change the performance of my dual-core on battery so i can get more time out of it?
Or is this no possibility in ubuntu.

Hp pavilion dv2000 with an Amd Turion 64 X2

Thanks!

Daan

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Shashank Chintalagiri
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Shashank Chintalagiri (shashank-chintalagiri) said : 		#1

I believe ubuntu does this by default when the processor supports it. You can "cat /proc/cpuinfo" to see the frequency your cores are running at any time. It automatically scales for my Intel Core2Duo.

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Daann (daanspanjers) said : 		#2

Yes, mine scales too, but to save battery power , can i set the speed on half?

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Best Shashank Chintalagiri (shashank-chintalagiri) said : 		#3

This post talks about manual cpu frequency scaling, and one of the comments tells how it could be done on a laptop. I havent tried it out yest, though, so I cant say anything about it.
http://ubuntu.wordpress.com/2005/11/04/enabling-cpu-frequency-scaling/

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Daann (daanspanjers) said : 		#4

Thanks Shashank Chintalagiri, that solved my question.