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This was tested and validated to work on Ubuntu 12.04 x64 - 14.04 x64 and Linux Mint 16 x64 - 17.3 x64 and Samsung NP300E5Z laptop. Essentially, we need to change content of /sys/devices/platform/samsung/battery_life_extender file to 1 or 0. To turn on Battery Life Extender (run command from bash console): sudo tee /sys/devices/platform/samsung/...


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What you're describing has to be a failure of either the battery voltage sensor, Ubuntu's driver or handler for that sensor, or of the battery itself. Long run life rules out bad cells that would display as a dead battery, so it's either a sensor failure or a software issue. Try booting from live media (DVD or USB) and see if the battery display still ...


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OK, try manually suspending it first, to see what's up: sudo pm-hibernate Suspend and hybernate have issues in 16.04 LTS at default kernel. Type uname -r to see which kernel you're using, probably 4.4.0.21 or 22. Doesn't work at this kernel with some laptops. Upgrading to a newer kernel from 4.4.8 onwards fixes the problem. See more here: https://bugs....


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I had the same issue with Ubuntu 16.04 on my laptop. My laptop was a Dell E6420 with an nVidia video card. The issue was related to the nVidia 'open source' driver not working correctly. I pressed Ctrl+alt+F1 at the logon screen to drop to the terminal and used command line to load the proprietary nVidia driver. Working great ever since. How to Install ...



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