Power mismanagement

[loneowais]

Hello..

I have been a Ubuntu user for almost 2 years now & I love it.
I've sorted out every problem I've faced till now.(Thanks to you guys).


But this one is driving me crazy.

I own a Dell Inspiron 1525. It came preloaded with Vista.

Vista gives me atleast 3.5 hours battery life in Balanced state.

But ubuntu gives me a maximum of 2 hours even when used in powersaver state.

I've tried various methods (powertop/custom states/switching between different power management packages) but could not increse my battery life.

Please help. I would rather give up computers than using vista.

Please..Anyone.

Is there any other well supported linux distro that has nice power management?

[tommcd]

I'm not sure how much this will increase your battery life, but you should enable laptop mode if you have not already. See this thread:
http://ubuntuforums.org/showthread.php?t=994598
Also see this from the Ubuntu wiki:
https://wiki.ubuntu.com/PowerManagement#Power%20(saving)%20states
For what it's worth, I get about 2.5-2.75 hours battery life on my Acer 3680 laptop, and that is with the upgraded 9 cell battery.

[loneowais]

I have enabled laptop mode, hdparm and various other tricks.
I also applied some tricks by lesswatts.org
Still I can only get upto 2 hours maximum.

[loneowais]

How much does the Kernel matter?..
I have the generic kernel running.
Will a specific kernel increase performance or battery life?

[CholericKoala]

well if you had a microkernel, your batterylife should be phenomenal:lolflag:

[jespdj]

well if you had a microkernel, your batterylife should be phenomenal:lolflag:
Really? How would a microkernel (http://en.wikipedia.org/wiki/Microkernel) make battery life phenomenal? Where would you get a microkernel?

(I think you don't know what you're talking about. If you do, then please explain.)