Hot answers tagged battery
3
Battery life in Linux sometimes tends to be shorter due to drivers not being able to automatically going into a sort of Power Saving mode.
Although the following suggestions won't change lots if your graphics card is on maximum power consumption permanently, I've found they've helped increase my battery life quite a bit:
Install CPUFreq
sudo apt-get ...
2
since I had similar issues with no discernible answer from the Ubuntu community (official or otherwise) I raised a bounty on your question.
However since then, I did install tlp which has fixed my problem, it is an advanced power management tool for Linux. I start tlp in battery or ac mode depending on what my power source is.
I would strongly suggest ...
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Have you enabled "Show battery status in menu bar" under the Power options?
EDIT
Hit Alt+F2, type dconf-editor and hit Enter. In that window, navigate to com > canonical > indicator > power, and change icon-policy to present. Also, try checking or un-checking show-time.
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Short battery life is a problem faced by many Linux users with laptops or nethooks. This is because Linux is always using high performance mode, while Windows adjusts performance when using battery. To solve this, a small applet called Jupiter was created. It allows you to set the performance mode of your computer, so you can get more of of you battery.
To ...
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sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp tlp-rdw
After installing the above you need to start it using:
sudo tlp start
I went from using jupiter from 1 /12 - 2hours from my laptop im using the above tlp now which is replacing jupiter and im getting 3-4 hours now beating windows battery life. Also consider ...
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You normally can switch to integrated graphics only mode in BIOS. On a PC you can normally access it by pressing Del or F2 during startup. I don't know about MacBooks, just google it.
If you have entered the BIOS search for the option to switch the graphics mode. You should be able to switch between Dedicated Graphics (NVidia only), Integrated Graphics ...
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Since Bumblebee version 3.0 "Tumbleweed", it can disable the NVIDIA card in a safe way to save power (press release). You can also run programs using the discrete card for better performance. Installation instructions:
Add a PPA containing recent drivers as the one in the Natty repository is outdated:
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
...
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All the post are old, Here the new one "How to install Bumblebee" How to switch between hybrid Graphics Intel/nVidia? Do not use the old post for installing bumbleebee, you will end up with nothing...
You also check Bumblebee Wiki
And for Power Saving look for an answer @ Oyibo
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you can use TLP: is an advanced power management command line tool for Linux that tries to apply these settings / tweaks for you automatically, depending on your Linux distribution and hardware
http://www.webupd8.org/2013/04/improve-power-usage-battery-life-in.html
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