Battery life under Debian

[Coilvect]

I currently have a x220 i5 2540M with a 6-cell battery. I have two problems which I can't seem to find the answer to so here we go!

1. Battery life is horrible under Debian and i've seen a couple of people actually make their batteries last 3-4 more hours than what im getting. (4 hours at 100%)

2. Whats up with the fan revving up so bad when its at 50c?

Any input will be greatly appreciated.

[Dawnbreaker]

Could you please post your current version of Debian and your kernel version?

to check your current kernel version, open a terminal and write uname -r

[Coilvect]

Currently running 3.4.0.9 Liquorix-AMD64 Kernel.

[Dawnbreaker]

hm.. this could be a kernel issue (not 100%), but why don't you try updating to the latest stable version -> 3.5.2 and test again.

[ThinkRob]

Did you do profiling with powertop and apply the recommended tweaks?

[Coilvect]

Updated to 3.5.2 and im getting [censored] good battery life. Thanks for the info guys.