Thanks, I will try this out. but I get better battery life with unity or gnome3
is that becuase kde's takes more power for the eye candy stuff?

> I also had the same problem. I have changed the boot parameter, I think now
> i am getting battery backup same as in windows. You can try this
> edit the grub file
> sudo gedit /etc/default/grub
> and replace the line
>
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force
> i915.i915_enable_rc6=1"
>
> with your existing one. if you are not having over heating problem then you
> can avoid "i915.i915_enable_rc6=1" from the parameter.
>
> now go to terminal type
> sudo update-grub
> .......Its done..........
>

-- 
"Freedom is the only law". 
"Freedom Unplugged"
http://www.ilug-tvm.org

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