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Thread: 16.04 Ubuntu getting terrible battery life all of a sudden

  1. #1
    Join Date
    Nov 2015
    Beans
    12

    16.04 Ubuntu getting terrible battery life all of a sudden

    Hey, I've been using ubuntu for the last month or so on my laptop and it's been working fine, up until last week. I am using a Dell XPS 15 9570

    Nothing has changed except I followed this guide https://medium.com/@maxmckinney/impr...u-b4ff6fb5cf1a to fix palm rejection. I AM NOT SURE IF THIS IS RELATED

    Ever since then, any time i open my laptop after closing it it works for about a minute, then freezes for about a minute, and then continues working normally.
    The battery life has also been horrendous, I used to get ~11 hours, not I get ~6.

    This is the output of running `powertop`- https://pastebin.com/nkuYMaqE

    As you can see it's using a lot of power. My battery was at 87% at that moment in time.


    I've since reverted the fix for palm rejection, and still having all these issues - so not sure if it's related or not.
    I'd appreciate any help, I'm considering doing a fresh install of Ubuntu but I'd like to avoid this if possible since I have everything already configured to my liking.

    Thanks

  2. #2
    Join Date
    Apr 2008
    Location
    Norwich CT
    Beans
    2,555
    Distro
    Ubuntu Mate

    Re: 16.04 Ubuntu getting terrible battery life all of a sudden

    Here are some tips to increase battery life: https://www.omgubuntu.co.uk/2016/04/...ery-life-linux

    I drink my Ubuntu black, no sugar.
    Ubuntu user 28819

  3. #3
    Join Date
    Nov 2015
    Beans
    12

    Re: 16.04 Ubuntu getting terrible battery life all of a sudden

    Sorry but this isn't useful. I've already gone through all the battery optimization and have tlp running. But within the last couple of days my laptop all of sudden is using on average between 20-40 W of power while on battery

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