I was reading Phoronix comprehensive tests about recent power saving regressions - specifically important for laptops -, and would like to point out this to everyone, since, according to the article, it is not receiving much attention from kernel maintainers. As you know, I recently installed a Sony Vaio and an HP G62. Just to give an idea of what I’m talking about, have a look at their chart:
Also worth mentioning are the Intel graphics tuning options. I’m currently running these on both computers (as both have an i915 card), and yet didn’t find any problem…?