powertop is a script for reducing power consumption on laptops and desktops running Ubuntu.

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22
votes
6answers
22k views

How do I make Powertop changes permanent?

I'm on a Compaq 615 and it's fan is loud as hell. Not much you can do about that but I'm trying to keep the CPU/GPU as cool as possible. This is what Powertop has to say: If I change all of them ...
2
votes
3answers
4k views

Sound system is eating away the battery

In my laptop the sound code is running at 100% even when I am not playing anything. It is causing my palm rest to hit significantly. While I do not face the issue on windows machine where I am using ...
9
votes
4answers
7k views

100.0% usage by Audio codec hwC0D0: Realtek

I ran powertop, and it says that the Realtek audio codec is using 100.0% of the cpu. Is this a problem? I'm running Ubuntu 11.10 32-bit on Intel® Core™ i7 CPU M 640 @ 2.80GHz × 4 Sony VAIO laptop.
2
votes
1answer
819 views

Battery is drained too quickly

I'm getting really low battery life under ubuntu, not even close to windows. I tried powertop, and I saw that my laptop is consuming in idle nearly 20 watts (a bit more). I tried to install ...
2
votes
1answer
1k views

Why does powertop think I have two displays?

Ok, so in powertop (version 1.97), in both the "overview" and "device stats" sections, I see two devices, each called "display backlight". One shows the correct percentage of use, e.g. if I lower ...
4
votes
1answer
3k views

How to tweak Powertop to reduce power consumption?

I am a completely new user to Linux/Ubuntu. I looked through tips on battery issues and PowerTOP but failed to find clear tips on how to tweak PowerTOP except for Toggle Tunable. Could someone look ...
2
votes
3answers
2k views

Why does battery power drain quicker in Ubuntu compared to WIndows in Dell Inspiron? [duplicate]

Possible Duplicate: Why does my computer get less battery life with Ubuntu compared to Windows? When I used Windows 7 with Dell Inspiron, I got a battery life of 2 hours. But ever since I ...
0
votes
1answer
941 views

How do I install powertop 1.13?

Since Ubuntu 11.10 a version of powertop is in the repository that is by intent aimed for developers. However for me as a user the old "classic" version like 1.13 is better suited. Do you know a ...