I wrote about the promising Linux utility Jupiter in a previous post. Unfortunately Jupiter development has ceased and though I still use it on my laptops on Raring (13.04) I don’t think it will be supported on 13.10. While looking for an alternative tool which saves power in a similar fashion I came across TLP – a purely cmdline utility which gives much more flexibility to seasoned Linux users (but may be a bit intimidating for newbies). To make things easier, it has an extensive documentation and I could find an excellent explanation of the configuration file options here. All it needs is a clean GUI with ease of usage. Did not try it yet as Jupiter is still giving me < 50°C CPU temperature but definitely worth a try as some users have reported a core temperature lesser than that on Windows.
As a rule of the thumb, irrespective of the OS you use, set your screen brightness low to save both your eyes and power.
To install TLP on Ubuntu 14.04 and above:
$ sudo add-apt-repository ppa:linrunner/tlp $ sudo apt-get update $ sudo apt-get install tlp