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Thread: Touchpad not working after update to 12.04 (DELL Latitude E5520)

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  1. #1
    Join Date
    May 2012
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    2

    Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Hi.

    A couple of days ago, I updated my system from 11.10 to 12.04 LTS. Which, fortunately, solved some X-Session-Crash-Problems. But now I noticed, that I can't use the touchpad anymore.

    I'm running Touchpad-Indicator 0.9.1.6 which has the "enable touchpad"-Option disabled. It also does not work when unplugging the USB-mouse like it did running 11.10.
    I looked around a little but couldn't find any solution.

    Thanks for your help!

    cheers
    Andy

  2. #2
    Join Date
    Sep 2008
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    8

    Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    same problem with thinkpad t520.
    touchpad did not work.
    this:
    Code:
    # modprobe -r psmouse
    # modprobe psmouse proto=imps
    as root restored touchpad BUT two finger scrolling does not work and "mouse and touchpad" settings panel no longer has the touchpad tab.

  3. #3
    Join Date
    May 2012
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    2

    Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Hi.

    Thanks, this indeed re-enabled the touchpad!
    But now I can't disable it while using an external mouse.

    cheers
    Andy

  4. #4
    Join Date
    Sep 2010
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    5

    Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Thanks, this also worked for my ASUS UL80VT.
    Thought that the problem with the Touchpad was removed after 10.04, but in 12.04 it was not working again.

    Was an Elantech Touchpad too.

  5. #5
    Join Date
    Feb 2013
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    1

    Talking Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Quote Originally Posted by guseit View Post
    Hi.

    Thanks, this indeed re-enabled the touchpad!
    But now I can't disable it while using an external mouse.

    cheers
    Andy

    I am having this problem now with Ubuntu 12.04. I upgraded from 11.04 on a HP ProBook and the touchpad-indicator was not working properly. My touchpad was permanently disabled. I really hate that thing, but if I don't have a mouse around to use I get stuck!

    I used the solution above:

    sudo modprobe -r psmouse
    sudo modprobe psmouse proto=imps

    and got the same problem: I can't disable it while using an external mouse, and my touchpad became very sensitive.

    I'd like to go back on that. Sorry, I am barely a Linux user, so I don't fully understand how it did work and, of course, how to go back.

    Any help from you guys that faced this annoying problem for several months?

  6. #6
    Join Date
    Apr 2011
    Location
    Kathmandu, Nepal
    Beans
    17
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Quote Originally Posted by sds57 View Post
    same problem with thinkpad t520.
    touchpad did not work.
    this:
    Code:
    # modprobe -r psmouse
    # modprobe psmouse proto=imps
    as root restored touchpad BUT two finger scrolling does not work and "mouse and touchpad" settings panel no longer has the touchpad tab.
    The above code works foy my MSI x620. But once I restart the machine, the touch pad stops working once again and I have to reenter the code. Any solutions??

  7. #7
    Join Date
    Jun 2012
    Beans
    3

    Smile Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Hi, I use a Copmaq Presario CQ40 with Ubuntu 12.04LTS in it. I had problems with the touchpad where in, if the external mouse is connected during boot, the touchpad would not work (If the touchpad hardware switch was turned ON the software would switch off and vice versa - in both the cases touchpad would be off). Post #2 got it working minus scroll. Is there any way to reverse it?
    Last edited by Shastry1; June 30th, 2012 at 06:56 AM.

  8. #8
    Join Date
    Nov 2006
    Location
    Mysen
    Beans
    61
    Distro
    Ubuntu 8.04 Hardy Heron

    Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    The modprobe commands also worked on my Dell E4310 after upgrading from 10.04LTS to 12.04.1 LTS.

    Maybe something for the devs to look at.

  9. #9
    Join Date
    Aug 2012
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    1

    Wink Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Quote Originally Posted by eveningpolestar View Post
    The above code works foy my MSI x620. But once I restart the machine, the touch pad stops working once again and I have to reenter the code. Any solutions??
    I had the same problem on my Dell Inspiron so added the two commands to the file /etc/rc.local just before the last line. not sure if this is the right thing to do but it works.

    the last 4 lines now read:

    # By default this script does nothing.
    modprobe -r psmouse
    modprobe psmouse proto=imps
    exit 0

    Have re booted a few times and the touch pad works on boot up each time.

  10. #10
    Join Date
    Sep 2012
    Beans
    6

    Re: Touchpad not working after update to 12.04 (DELL Latitude E5520)

    Hey guys theres a mouse and trackpad section in settings. go there click on trackpad and enable the 2finger scrolling or whatever features u feel that you are missing

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