Subj : Linux kernel version 2.6.7 limiting cpu speed
To   : comp.os.linux
From : john
Date : Wed Jul 28 2004 08:10 am

I am running this kernel on a fujitsu lifebook B2175. I am having 
trouble with power management. I have a 1.8Ah battery and am only 
getting less than an hour of life. I should be getting at least 2.5 to 3 
hours. this lifebook has a 500MHz mobile celeron and 128 meg of ram (I 
know the ram is part of the problem--I need more--just haven't done it 
yet--with 512 it should have preemo life). The question I have is how 
can I limit the cpu speed in the kernel--I have found where I can vary 
the speed but no place to limit the upper range. I would like to cut the 
max back to 300MHz. That is fast enough for pretty much anything except 
OO. Also is it better to use APM or ACPI? Is there a place to download 
scripts for ACPI control? Thanks.

.