I have an Asus K55VD laptop (Intel i7-3610QM, Intel HD-4000), and have noticed poor battery life when using Ubuntu: ~3hrs. This runtime is with the screen at minimum brightness, the processor scaled all the way down, pm-powersave set to "true", and the wifi power-management on. Does anyone here know how to decrease the power consumption? I've gotten the same battery life on 12.04, 12.10, and even raring pre-release. Are there some sort of Intel-specific power-management tools available?
Thanks!