Linux power regression solved?

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http://unix.stackexchange.com – Its been around 6 months since I gave up using Linux because of its infamous power regression. I used Ubuntu and Fedora as my primary OS. After power regression hit them, I tried numerous tweaks to minimize it. I tried some light weight shells, installed kernels prior the power regression issue and even kept updating the kernel to the latest versions. Unfortunately nothing worked. So eventually I gave up using Linux. I am not sure whether its been solved or not. If its solved please let me know with your comments below. If its not, I just wonder why is it taking the Linux community, the world (HowTos)