Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a little problem. I bought a Pavilion G4 with Windows 7, but I really hate Windows, so I installed Ubuntu on it.

On Windows, the laptop's battery lasts longer than it does on Ubuntu. I've also noticed that the processor is constantly running, because on Windows the laptop's internal temperature is not as high as it is on Ubuntu.

I read something about wakeups and that some processes have 150 to 500 wakeups per second.

share|improve this question
up vote 1 down vote accepted

I have had great utility with powertop. It is available to be installed on ubuntu. One might need to be careful about what one is doing with it though. As powertop might recommend things which it thinks as a effective optimization but might cause a loss of feature like usb hangups etc. To install powertop run

sudo apt-get install powertop

Then run

sudo powertop 

and follow instructions to speed up the computer speed.

share|improve this answer

Jupiter is a software for power control. It works by limiting the performance of your laptop.

introduction and downloading:

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.