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Power management on Lenovo t420s

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linux-howto

http://crunchbang.org – There were some similar topics, but I would like to describe in one place - I hope my Lenovo T420s power management "success story". I'll update the main post of the passage of time--------------------------------------------------------------------# 0 : Starting point--------------------------------------------------------------------Battery life: 1hrFan: ~4000rpmTemperature: very hot near fanPowertop: ....--------------------------------------------------------------------# 1 : Kernel issue--------------------------------------------------------------------Modify /etc/default/ (HowTos)