[ltp] Re: fan problem on R51

Jan Girlich linux-thinkpad@linux-thinkpad.org
Thu, 04 Nov 2004 19:07:42 +0100


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Hi Moritz,

Moritz Karbach schrieb:
> 3,5h is quite impressive... But I think the background image's got nothing to 
> do with that - except for that a black image maybe look nicer with low 
> background brightness...

I don't know any exact number about how much to save with different 
colors. But just think about this: IMHO colors on LCDs are put together 
by three LEDs: red green blue. white is the combination of every LED and 
black is no LED. So you'd probably save some power if you "switch off" 
every LED.

> What exactly do you mean with 'laptop-mode' ?

http://www.xs4all.nl/~bsamwel/laptop_mode/

a special kernel-mode to save some power.

Jan

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