ubuntu 12.04: Why my laptop is consuming more power than 11.10?

Posted by sanz on Ask Ubuntu See other posts from Ask Ubuntu or by sanz
Published on 2012-10-23T14:50:18Z Indexed on 2012/11/02 23:17 UTC
Read the original article Hit count: 189

Filed under:

power-management

|

battery

I had 11.10 X86 on my Asus laptop (sandybridge, Nvidia 520M). I had 8 hours' battery life with Bumblebee and Jupiter. Average battery discharge rate was around 10w. Later I changed, not upgraded, to 12.04.1 AMD64. I installed Jupiter. But there is no "restricted drivers" available so I guess Bumblebee will not work. So I removed nvidia drivers. Now I only get 4 hours' battery life. Average battery discharge rate is around 19w. The removal of nvidia driver did not make any difference.

What's the cause? Nvidia video card not disabled or 64b version of Ubuntu?

© Ask Ubuntu or respective owner

Related posts about power-management

Vista Power Management GPO

as seen on Server Fault - Search for 'Server Fault'
Hi, I've created a loopback GPO that has several settings (both computer and user) including a Custom User Interface (Access 2007 Application) and Power Management (has the computer sleep after being idle for 2 min). I'm also filtering so that this policy does not apply to "Admins" - only to "Users"… >>> More
Diable Power Management in Fedora 12

as seen on Super User - Search for 'Super User'
How to disable the power management in fedora 12, so that lcd/monitor should not go to sleep/off when system is idle? >>> More
Diable Power Management in Fedora 12

as seen on Super User - Search for 'Super User'
How to disable the power management in fedora 12, so that lcd/monitor should not go to sleep/off when system is idle? >>> More
Windows 7 power management in Boot Camp mode

as seen on Super User - Search for 'Super User'
I have a Macbook Pro with Windows 7 installed in Boot Camp. I have serious problems with the power management and not sure why. I have the default Balanced power plan selected. Many times when I close the laptop and leave it for more than just a few minutes, when I open it back up, it does not awake… >>> More
Windows - CPU power management APIs

as seen on Stack Overflow - Search for 'Stack Overflow'
What APIs are provided by Windows for CPU power management (I'm interested in CPU frequency scaling, setting min and max CPU frequency - similar to what you can do in Control Panel in power plans, but in a programmatic way). I'm also interested in .Net APIs. >>> More

Related posts about battery

Regardless of battery charge, when unplugged Ubuntu displays critical battery message and hibernates

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Regardless of battery charge, when unplugged Ubuntu displays critical battery message and hibernates. I can only seem to change it to either shutdown or hibernate. This does not happen when using windows 7 on the same computer. Windows 7 gives a good few hours on a full charge indicating that it… >>> More
Ubuntu 12.10 is reading mouse battery as a laptop battery

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a bluetooth mouse connected to my laptop. Much to my delight (I posted the suggestion!) the mouses battery is now displayed along side the laptop's battery. Unfortunately is is named simply "battery" in the drop down and "Laptop battery" once the power statistics windows is opened. The details… >>> More
The battery indicator& Power setting panel shows wrong battery state

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
My laptop is Thinkpad E420 with Ubuntu 12.04 64-bit installed, the kernel version is 3.2.0-33-generic. I have set the battery threshold as 60% via windows7. It seems that the threshold auto effected in Ubuntu. However, there are some problems of the battery indicator's state. I'll list some information… >>> More
To have a long life with the battery it has to be separated from the Laptop after each use

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
To have a long life with the battery it has to be separated from the Laptop after each use Developing a Laptop and concern about it's battery life Don't be concerned follow this advice how to deal with your Laptop battery. A fresh power supply of your Laptop can be purchased in a very low charge… >>> More
How to Calibrate HP Laptop Battery

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Calibrating the HP Laptop Battery This document pertains to HP Notebook PCs with Windows 7 and Vista. Calibrating the laptop battery Calibrating the battery means recharging the battery to its maximum capacity and resetting the battery gauge to display the level of charge accurately. The Windows… >>> More