Laptop consuming battery fast and a constant flow of heat from CPU

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https://bbs.archlinux.org – Hello to all.I'm having similar problems like this one, here using a Dell Vostro 3460, maybe is just some non-windows OS unfriendly hardware. Battery last like 5 or 6 hours on Windows, and just like 2 or 2 and a half on Arch. Will remove battery until there is a solution, and use the laptop only on my workplace.I have to admit that, I don't know how to disable the discrete video card, I just blacklisted nouveau.LCD is not hot, there is just constant flow of heat by the ventilation gap (maybe the CPU dissipator?) brightness settings are ok. On windows that heat flow sometimes just sto (HowTos)