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Thread: Ubuntu freezes while charging

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  1. #1
    Join Date
    Nov 2011
    Beans
    1

    Ubuntu freezes while charging

    hi!

    my ubuntu 11.10 64bit (dell e5420) freezes if and only if I plug in the ac adapter AND the battery isn't fully loaded.
    So for example if the battery is 80% and I plug in the ac adapter, the mouse (and the laptop itself (music still plays, but the video doesn't)) freezes. When I remove the battery while freezing, everything works fine then. Same happens, if I unplug the ac adater.

    Any ideas?

  2. #2
    Join Date
    May 2008
    Beans
    1

    Re: Ubuntu freezes while charging

    I have same setup (Dell E5420 with Ubuntu 11.10 x64) and have experienced something similar. So far, it hasn't frozen completely, but when I plugin my power cord, things get very sluggish.

    The weird part is, the moment I unplug the power cord, responsiveness is restored and things work smoothly again.

    Clearly, there is something weird going on here with power management.

    Normally, I use a docking station and have no problems with the dock.
    Last edited by mikeycgto; December 7th, 2011 at 09:42 PM.

  3. #3
    Join Date
    Nov 2011
    Location
    At home
    Beans
    1,359
    Distro
    Ubuntu 11.10 Oneiric Ocelot

    Re: Ubuntu freezes while charging

    Possible solutions:

    Open the System Settings-->Power settings(first option upper right corner).
    Play with Suspend when inactive for etc to see if there is a difference.

    If no, install Jupiter to tweak the settings:

    Code:
    sudo add-apt-repository ppa:webupd8team/jupiter
    sudo apt-get update
    sudo apt-get install jupiter
    Instructions here:
    http://www.webupd8.org/2011/09/jupit...lable-for.html

  4. #4
    Join Date
    Feb 2010
    Beans
    19
    Distro
    Ubuntu 10.10 Maverick Meerkat

    Re: Ubuntu freezes while charging

    I have Dell e5420 and have this problem too. Has anyone solved this problem?

  5. #5
    Join Date
    Jan 2012
    Beans
    1

    Re: Ubuntu freezes while charging

    Salam,
    try
    Code:
    echo N> /sys/module/drm_kms_helper/parameters/poll

  6. #6
    Join Date
    Mar 2012
    Beans
    6

    Re: Ubuntu freezes while charging

    I am also having the same problem Dell E5420. I have had this issue on every distribution I have tried except the official Dell one (but that is 10.04 and breaks when you update).

    Same problem on Fedora all versions and mint (which is ubuntu anyway).

    Is there a bug filed for this?

  7. #7
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    14,731
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Ubuntu freezes while charging

    Thread closed. Please do not post in old threads.

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