thinkpad r40 battery life
hi, im running slackware 10.0 on an ibm thinkpad r40 laptop and i have extremely short battery life. when i use apm, i cant keep it up for more than 1 hour. on acpi, i can keep it for about 1,5 hours. i am using cpufreqd to spin down to 1,2ghz but it only gives me 15-20 minutes more. (this machine can do 2,5-3 hours on windows.
also, i tried using hdparm to spin down the hdd but im not sure if it works as it still reports as active/idle.
should i just accept the fact that linux wont give me as long battery life as windows or is there something that im missing?