142
votes
22answers
144k 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 ...
15
votes
4answers
16k 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 ...
1
vote
2answers
8k views

Power Savings and Performance Modes on Ubuntu System

This might be the only thing I miss from windows. There is no way to tell the system to run in high performance mode or in power saver mode. May be this feature which is already there and I am ...
12
votes
5answers
36k 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 ...
0
votes
1answer
5k views

Ubuntu 13.04 - High temperature [duplicate]

I've always used Ubuntu. I installed the version (13.04) and I have a problem: the CPU's temperature is high also in normal condition. This is the response of lm-sensors: acpitz-virtual-0 Adapter: ...
4
votes
1answer
928 views

Why is Ubuntu so power-inefficient? [duplicate]

Possible Duplicate: Battery drain on ubuntu is fast I'm currently getting 7–8 hours of battery life whilst using Windows, but I only get about 3 hours in Ubuntu? Why the big gap? Some ...
0
votes
1answer
120 views

Ubuntu 15.04 on laptop - “When plugged in” setting not enforced after battery is charged to 100%

I got Ubuntu 15.04 running on a Dell 3147. Under Power settings, I have When plugged in set to Don't suspend. It seems that after the battery has reached 100% it no longer honors this setting, instead ...
1
vote
1answer
190 views

JUPITER installation problems ..

** PLEASE HELP ** i attempted to install the JUPITER app on 3 different occasions an all i keep getting as end result is ..... Cannot add PPA: 'ppa:webupd8team/jupiter'. Please check that the PPA ...
0
votes
0answers
124 views

Battery life for MacBook running Ubuntu

I've noticed running Ubuntu 14.04 on my 2012 Macbook makes for a much shorter battery life on the machine, compared to OS X. I understand OS X is probably optimized for my hardware and this leads to a ...
1
vote
2answers
2k views

Laptop overheating on Ubuntu 12.04

I have dell inspiron q17r with two graphic cards and I noticed that it is overheating. I installed bumblebee, jupiter and flashblock, I followed this but it still got to even 74C. Here I found ...
4
votes
3answers
5k views

Heating issues and Fan sound on Dell Inspiron 3521 running Ubuntu 13.04

I have tried various solutions available online 1) Added pcie_aspm=force to /etc/default/grub 2) Since Jupiter is no longer available in 13.04 , installed tlp But still fan is making lot of sound ...
2
votes
2answers
4k views

Ubuntu 12.04 LTS drains my Samsung Series 9 900X3C ultrabook's battery extremely fast. Is there anything I can do to fix that?

The title basically says it all. My Samsung Series 9 900X3C ultrabook's battery is in the deep red around barely three hours after disconnecting it from the power - and during most of that time the ...
4
votes
4answers
2k views

Much lower battery life on Ubuntu and laptop heating up badly

I have the following config laptop: System model: HP Pavilion g6 Notebook PC Processor: AMD A8-4500 APU with Radeon HD Graphics (Quadcore 1.9Ghz) Memory: 6Gb RAM Graphics:AMD Radeon HD 7640G+7600M ...
-1
votes
2answers
1k views

how to save battery in ubuntu 14.04 LTS [duplicate]

Am using a laptop so need efficient use of battery, so that i can get long backup. i have seen some videos that shows we can use jupiter applet and save our battery but when i try for my laptop there ...
0
votes
0answers
62 views

Battery management on Ubuntu

It seems like battery management in ubuntu is not as good as in Windows (at least for me), The battery in windows last for longer time. Another thing My laptop is on charge most of the time, but ...

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