On Thu, 27 Oct 2005, Gavin McDonald wrote:
I don't know what happened to this thread, but I found the following just now, and thought it pertinent enough to post: "Intel Speedstep You will most definitely want to "modprobe speedstep" or "modprobe speedstep-ich" at startup, depending on which version of the kernel you're running. This will load the kernel's speedstep module which will throttle the CPU when operating on battery power. If you don't load this module, the T30 will continue to run at full 2Ghz speed on battery, which will last all of about 45 minutes. " "...setting the hard-disk spindown to 5 minutes and setting "laptop mode" in the kernel makes a slight change in battery life...although it is still pretty poor in Linux. " Both quotes are from this page: http://www.nuclearelephant.com/papers/t30.html And should help increase your battery life.
I'm not sure the speedstep module is needed in FC4. I have the cpuspeed package installed on my T41, and it seems to be controlling the clock just fine. speedstep doesn't appear in lsmod at all. I believe cpuspeed was installed with my initial FC4 install.
-- Matthew Saltzman Clemson University Math Sciences mjs AT clemson DOT edu http://www.math.clemson.edu/~mjs -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
