Linked Questions

0
votes
0answers
13 views

how do I extend battery from lacking? [duplicate]

I wanna ask you guys about extending battery. I run precise, My laptop can't work more than 1 hour, after it's fully charged. The notification after I unplug the charger only shows 0:45. How can I ...
117
votes
22answers
94k views

Tips to extend battery life for laptops and notebooks

This question is present as a matter of historical interest. While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on Ask ...
35
votes
6answers
8k views

Is system cleanup/optimization needed

Does Ubuntu need regular cleanups like Windows. For example: Cleaning the logs Temporary files Package cache Dependencies left over I am not referring to web browsers only. In case I never do a ...
27
votes
8answers
30k views

How do I make Powertop changes permanent?

I'm on a Compaq 615 and it's fan is loud. 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 to ...
29
votes
5answers
20k views

Why does my computer get less battery life with Ubuntu compared to Windows?

Last year I purchased a Dell Inspiron 5315 laptop shipping with Windows 7 preinstalled. I installed Ubuntu 10.10 alongside it with dual-booting. On upgrading to Ubuntu 11.10, I was upset to find I now ...
8
votes
7answers
13k views

Disable “ondemand” CPU scaling daemon

I have a server that, as of the upgrade to 10.04, is now running the "ondemand" CPU scaling daemon. Why would it automatically install this? I don't want my server saving power at the expense of ...
16
votes
3answers
55k views

How to fix 3D Acceleration for Vmware Workstation 9?

I have recently installed Vmware workstation 9 on Ubuntu 12.04 & i have migrated my VM's from windows to Ubuntu 12.04 . Now i am getting openGL error & it says no 3D acceleration as shown in ...
6
votes
4answers
19k views

How can I prevent iwconfig power management from being turned on?

I am affected by this bug: 869502. A workaround which seems to stop the kernel panics for me is to disable wlan0 power management: sudo iwconfig wlan0 power off However it seems to automatically ...
10
votes
3answers
17k views

How to disable auto power off of usb devices like usb mouse?

I don't know how , but somehow automatic power-off of usb devices got accidently enabled. Now my usb mouse goes off even if it's idle for 2-3 seconds. it's really irritating. help?!!!!! P.S. This ...
7
votes
4answers
8k views

How to correctly enable/test VA-API on Intel Sandy Bridge?

I would like to know which package I have to install and how to test that is working fine? I know there are many question similar but no one is complete and clear to me
4
votes
5answers
8k views

Does Jupiter really improve battery power?

I installed Jupiter on Ubuntu 11.10 and set the preference mode to "Power Saver" but haven't seen any noticeable difference. Does it really do what it claims?
10
votes
4answers
5k views

Ubuntu 14.04 draining laptop battery quicker than in 12.04 (1 hour versus 4+ hours)

I have recently upgraded to Ubuntu 14.04 on a Lenovo T420 laptop (Corei7-2620M CPU @ 2.70GHz × 4 + Sandybridge Mobile). The battery is now over 2 years old, but under Ubuntu 12.04 it still lasted ...
3
votes
4answers
5k views

How to keep the laptop's temperature low without hardware cleaning?

Last few days I found out that when I open Google Chrome and the laptop's fans start working really hard and I can not touch the mousepad because of heating. I use Ubuntu 11.10 on my Toshiba A350-22z ...
8
votes
4answers
2k views

Is Ubuntu better on battery than other OS's? [duplicate]

nothing really to say here, except it would be cool to get some examples on what OS's might save me battery life and if you have any suggestions on apps that would save battery on ubuntu that would be ...
9
votes
2answers
12k views

Ubuntu 13.04 CPU frequency scaling 'stuck' on lowest frequency

I've just installed Ubuntu 13.04 on my MacBook Air, after toying around for awhile the machine felt really slow, so I checked out the CPU frequency. cpufreq-info, it reports 800MHz on all 4 cores ...

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