First, read this, then:

To see your CPU governor: cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
To change your CPU governor (it must be done for each core you have, it's an example for a 4 cores processor, if you have two, only use cpu0 and cpu1 commands): # echo governor-name-here > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
# echo governor-name-here > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
# echo governor-name-here > /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor
# echo governor-name-here > /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor
Install yacpi to see info sudo apt install yacpi, you can run it typing yacpi on terminal.

And, for laptops, I must recommend to you to install TLP, it automatically manages your power related things to save battery sudo apt install tlp tlp-rdw && sudo tlp start, and again, if you want to read some info about the app go there. Greetings!

I tried, but I couldn't. Yacpi is not working. I installed tlp and change its value but didn't work...

本帖最后由 cg281312960 于 2018-11-10 07:45 编辑

This is a very good idea. Design an window for managing power. @aida

sudo apt install tlp

TLP is not working for i5 2450m.

You can integrate something like this:


I think that very imported for many users.

Just watching video on youtube:

Core speed is too much.

i will share my script tomorrow，maybe it works well on surface pro3

The problem goes on...