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Thread: Ubuntu won't turn off computer after shutting down

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  1. #1
    Join Date
    Jan 2012
    Location
    'merica
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    61
    Distro
    Lubuntu Development Release

    Ubuntu won't turn off computer after shutting down

    Ubuntu doesn't turn off my computer after it shuts down. All the normal shutdown dialogs come up and then the screen goes black, but it stays powered on.
    I have a Dell Latitude D630. I use it with a dock most of the time, but I tried it off the dock and got the same result.
    Any help?

  2. #2
    Join Date
    Dec 2007
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    483

    Re: Ubuntu won't turn off computer after shutting down

    Not entirely sure this will work with grub2 but worth a try:

    press alt + f2 and type

    Code:
    gksu gedit /etc/default/grub
    it will open a text file.

    look for GRUB_CMDLINE_LINUX_DEFAULT=" "

    after the = sign it may say something like "quiet splash"

    add "acpi=force" minus the quotes

    so it should be something like this:

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force"

    Save and close the file.

    Then open a terminal and type:

    Code:
    sudo update-grub
    Press enter and type in your password.

    Reboot, and try to shut down.

    I had to do that with an older computer I had, but that was with ubuntu 7.04 and legacy grub. It may still work, though.
    Don't eff with The Cult...

  3. #3
    Join Date
    Jan 2012
    Location
    'merica
    Beans
    61
    Distro
    Lubuntu Development Release

    Re: Ubuntu won't turn off computer after shutting down

    That worked. Thanks a lot.

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