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Thread: Ubuntu 12.04 & Dell E6410: screen not powering down

  1. #1
    Join Date
    Nov 2008
    Location
    Switzerland
    Beans
    6
    Distro
    Ubuntu

    Ubuntu 12.04 & Dell E6410: screen not powering down

    I'm running Ubuntu 12.04 with the latest updates on my Dell Latitude E6410 with the latest BIOS and the screen doesn't power down (it does blank but backlight stays on) after the defined timeout set like it used to be in the previous versions.

    This is the exact same issue as described here: http://ubuntuforums.org/showthread.php?t=1954960 but there's no solution & the thread is locked.

  2. #2
    Join Date
    Oct 2008
    Beans
    5

    Re: Ubuntu 12.04 & Dell E6410: screen not powering down

    I am also having this problem. Has anyone had any luck? all the threads regarding this issue are fairly old.
    The closest I've gotten is by using the command
    xset dpms force off
    which does turn off the backlight but only for a short period of time when you move the mouse or use the keyboard after the command has been run
    Last edited by darthwouter; August 29th, 2012 at 05:21 PM.

  3. #3
    Join Date
    Oct 2012
    Beans
    2

    How I solved the problem

    I had the same problem.
    I solved the issue by installing the new Nvidia drivers (version 304.51).
    I used the x-swat PPA:

    • sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
    • sudo apt-get update
    • sudo apt-get install nvidia-current
    I hope I helped someone...
    Last edited by eorz; October 17th, 2012 at 10:42 PM.

  4. #4
    Join Date
    Nov 2008
    Beans
    92

    Re: Ubuntu 12.04 & Dell E6410: screen not powering down

    Changing the driver to the "post-release updates" driver in "Additional drivers" fixed it.

  5. #5
    Join Date
    Oct 2007
    Beans
    91

    Re: Ubuntu 12.04 & Dell E6410: screen not powering down

    That worked, thanks!

  6. #6
    Join Date
    Oct 2012
    Location
    Kansas
    Beans
    105
    Distro
    Ubuntu

    Re: Ubuntu 12.04 & Dell E6410: screen not powering down

    it seems that many people are having this problem. i just reinstalled ubuntu and that worked. i doubt it will work for anyone else though. mine was because the wubi.exe installer got messed up.

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