rygD
Nihilistic Mystic
What are the specs on your x220, including battery, what are typical tasks/settiings on battery, and how long does the battery last you? I want to compare with what I get. I haven't actually tested or tracked it, but I regularly use mine (i7, 8GB, not sure about the battery) for 5+ hours with the screen brightness dropped a bit. I will ask someone I know with an i5 tablet version with 4GB and Windows 7 tomorrow, too. I have a SSD in mine, so I guess that matters.On the eeePc I did manage to have similar battery life, on the X31 and my current X220, I don't. Maybe I suck at using Linux, maybe drivers are better on Windows, maybe Microsoft is evil and made ACPI so Linux cannot be efficient, maybe I'm a fool and don't deserve to use Linux as I can't configure it well enough to reach my goals.
I am considering coreboot, although I suspect that will mess things up for me, just like Linux on a laptop does for you.