I have aquired a Samsung notebook, model RV420 (Core i3 Sandy Bridge), acording with the specifications the battery should work for aproximatly 6 hours, but in fact his duration was 2 hours and 45 minutes. I read about the Kernel issue with power consumption and I found a patched kernel made by Canonical (https://wiki.ubuntu.com/Kernel/PowerManagement). The patched Kernel version is 3.0.0-13, my Ubuntu is updated with kernel 3.0.0-14, the question is, this Kernel version has the patch applied?
I already know the commands that can be added to Grub, but some users have noticed that this damages the battery in some cases, so I not going to do this.
I don't have Windows installed on this machine, so I can't compare power consumption.
The Kernel 3.0.0-14 has the patch, or it's just the 3.0.0-13? If not, how can I install it?
P.S.: Sorry for the english.