Is there any way to do that?
Something like xbacklight and Cuttlefish
yes you can, using
sudo add-apt-repository ppa:linrunner/tlp sudo apt-get update sudo apt-get install tlp tlp-rdw
ThinkPads require an additional:
sudo apt-get install tp-smapi-dkms acpi-call-dkms
what you can do with tlp ?
and many other power management settings. tlp changes settings automatically according to power supply is plugged or not.
its better to read tlp documentation before you use tlp, its written in simple language and step-by-step guide manner