So it's ok that if I run powertop then it suggest me to disable xy, etc., but after I exit powertop, reboot the pc, and start it again[powertop], it brings up the same tips again! So how can I permanently save the suggestions of powertop?
Quick answer :
You just need to save them in
Saving to rc.local as stagelll mentions is probably the simplest way to do it, but it's obviously only good for a local fix.
Another way would be to craft a udev rule that applies the setting for the device in question. udev rules are more complicated to write but are safer to share with others.
For example, powertop suggested this:
which solved the particular issue I was interested in. But
This doesn't exactly save your powertop settings, but it does come with its own defaults which enable almost every powertop setting. It's called laptop-mode-tools.
You can edit the settings by running
Here is a link for more information http://samwel.tk/laptop_mode/