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Idea #17825: Better life battery for laptop

bug This idea is a duplicate of Idea #81: Power Management.
Written by biniou the 3 Feb 09 at 11:48. Category: Hardware support. Related project: Nothing/Others. Status: New
Rationale
Ubuntu as almost all linux distributions has a crapy life battery. Power management is incompleted. It would be nice to have an interface for desactivating some components like bluetooth or webcam etc.
On my Samsung NC10, I have 8h under XP against 5 under Ubuntu!
Tags: (none)

336
votes
closed
Solution #1: Include a software like Ekobatt
Written by biniou the 3 Feb 09 at 11:48.
It would be a good solution to include a software like Ekobatt or eee-control which permit to desactivate some features of laptop.
663
votes
closed
Solution #2: Add more power saving techniques to gnome-power-manager
Written by amrhassan the 4 Feb 09 at 07:20.
Since it's already in control of power consumption. Two power managers running may conflict.
Add options to disable bluetooth and webcam when on battery power to gnome-power-manager.
333
votes
closed
Solution #4: Analyze which software makes your machine use more power with PowerTOP
Written by torkiano the 9 Feb 09 at 16:15.
PowerTOP is a Linux tool that helps you find those programs that are misbehaving while your computer is idle

More information: http://www.lesswatts.org/projects/powertop/
2
votes
closed
Solution #5: Develop/Intergrate WattOSPM (GUI laptop-mode/Powersaving) in2 Gnome-power-manger
Written by chappell101 the 1 Apr 09 at 15:16.
This is taking Solution #3 to prevent conflict and expanding to give Gnome-power-manger 2 modes, simple for average user and button to reveal an advance set of options for power users based off the options in WattOSPM and PowerTOP.

To stop average users completely breaking their system with the tool only include safe things to disable in the simple mode in an on/off switch manor such as the optical drives and sound chipsets which aren't necessary to all users on the go but still waste power, Also this is a feature possible in windows for a long time now! The advanced mode could log user results of all their changes and show on a graph similar to Gnomes current power chart and have the option to submit the best back to Ubuntu so they can be set as silent defaults values for specific hardware for less technical users.

WattOSPM is already an effective little python tray-bound GUI to enable fast changing of laptop-mode-tools, X-backlight, and Powersaving settings to optimise many parts of your system for battery consumption and performance. So it would be nice to see it assisted by Ubuntu developers to add more features while it is integrated into Gnome to give back to the whole Linux community. These changes could be those found in Rightmark CPU Clock Utility for Windows Eg.CPU performance states editor, Thermal throttling values, and CPU PLL lock time these could be accessed through the Gnome CPU Frequency Scaling Monitor applet in the tray if cpufreq-selector is installed by default.



Also get Ubuntu to look at some of the power/speed measures used in the Ubuntu derivative distribution WattOS and port them back to the main distribution where possible.

How to Install http://ubuntuforums.org/showpost.php?p=6362540&postcount=103
Review http://www.raiden.net/?cat=2&aid=539

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Comments
juancarlospaco wrote on the 14 Feb 09 at 01:17
eee-control only works on Asus eee

yzarc wrote on the 16 Feb 09 at 18:06
powertop should be incorporated to the system, with gui in the energy manager. when the computer goes in battery, an alert pops asking "would you like save battery?"...

janc wrote on the 18 Feb 09 at 16:16
Gnome-power-manager will maybe have some powertop-like features in the next release (I know the developer is working on it).

jharris1993 wrote on the 21 Feb 09 at 01:47
Re: solution #3.

Though it's not a bad idea for some items - like the radios in wireless or bluetooth - I have REAL issues with that for just slamming power on other devices (like video, etc.) because when they come back up - God Himself doesn't even know what state they come back to

That means a massive kernel and/or driver re-write for everything we power-manage since we'll have to:
1. Absolutely *KNOW* the precise state of the device, internal registers, currently pending operations, what's in the display list, etc. etc. etc.

2. Not only be able to READ all this information, but have a way to RE-INITIALIZE it back into that state when it comes back on-line.

I have real issues with hibernation in Windows/anything else (and to a less extent with Suspend), for just that reason. I put a laptop into hibernation - then bring it back later on - and it is **invariably** all confuzerated about SOMETHING. I end up rebooting the $^#&@!ing thing anyway.

Soft-off for certain features of certain devices? Sure! Hard-power-off? Fugeddaboutit!!

What say ye?

Jim

willjcroz wrote on the 20 Mar 09 at 10:08
Shutting down power to the optical drive!!!!

Windows XP (even 2000) had this option, by using the 'safely remove hardware' option, the drive actually had it's power cut.

I like to have a DVD drive available for the (rare) cases where I actually use it on my laptop. However to have it powered up (worse, being polled by HAL for new media) all the time is annoying. It is even showing it's power LED when suspended to RAM, this needs sorting, please!

chappell101 wrote on the 1 Apr 09 at 15:38
You should try try laptop-mode through WattOSPM as it lets you optimise laptop-mode-tools through a nice GUI to enable a considerable saving on power consumption. I personally can gain an extra 45min+ over windows with the tool and an extra 1:05hours over a default Ubuntu install.

I also would like to see a universal version of Ekobatt though so I can set my laptop to be suitable for max battery life in any user scenario.

How to Install http://ubuntuforums.org/showpost.php?p=6362540&postcount=103


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