Save battery on Intel Linux

tux_compYou’ll find several threads on how Linux drains your battery on Google. While many of the issues might be hardware specific, there are some ways to enhance your battery life in addition to the standard TLP and powertop utilities. This article deals with some advanced mechanisms and utilities to go deeper into power management. Continue reading Save battery on Intel Linux

TLP: Linux power saver

cool_penguin_smallI 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

Webpage: TLP

i7z: Intel i3, i5, i7 reporting tool on Linux

chipIf you want a detailed information of your Intel i3, i5 or i7 CPU on Linux, try this tool out – i7z. Pretty simple to compile with minimal dependencies. It gives you a lot of detailed information to know your CPU better, e.g. do you know if your Turbo Boost or Hyper-Threading is enabled? Use this tool to check.

Website: i7z

Jupiter: power & hw control applet

jupiterUPDATE: Jupiter is not maintained anymore. Check out TLP.

I came across a tiny applet for Linux recently – Jupiter. It allows you to use the system in different power saving modes. Plus it allows you to control some hardware like bluetooth, wireless, touchpad, screen resolution and orientation as well as display devices. I could never turn off my bluetooth LED on startup since I removed all the bluetooth related packages from Synaptic but this software could turn off the bluetooth LED without any additional package installed. It’s real handy and consumes very less memory (I couldn’t find it in top list for quite some time). You can use Power Saving mode for most of the day to day activities. In Power Saving mode my CPU temperature shows around 52° C.

Webpage: Jupiter