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Solved Lenovo Touchscreen device missing?

Discussion in 'Windows 7' started by kittenkitten, Aug 28, 2017.

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  1. kittenkitten

    kittenkitten Thread Starter

    Aug 25, 2013
    Tech Support Guy System Info Utility version
    OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
    Processor: Intel(R) Core(TM)2 Duo CPU P9600 @ 2.53GHz, Intel64 Family 6 Model 23 Stepping 10
    Processor Count: 2
    RAM: 3992 Mb
    Graphics Card: Mobile Intel(R) 4 Series Express Chipset Family, 1772 Mb
    Hard Drives: C: 221 GB (132 GB Free); Q: 10 GB (3 GB Free);
    Motherboard: LENOVO, 2801CTO
    Antivirus: Microsoft Security Essentials, Enabled and Updated

    Hi. Seems we have a small problem with our touchscreen.
    The laptop was dropped at one point, the frame and cover were damaged but the touchscreen itself was not hurt. We replaced the damaged parts, but now the 'touch' part is not responsive. In device manager it is listed as "LCD 1440x900", and when we click on the "N-trig DuoSense Digitizer" it comes back as "no devices found". The frame and front screen cover were all we changed, everything else remains original.
    For a couple weeks, while we were waiting for the parts to come in the mail, we used the computer with the screen propped up inside the old cover, (stupid, yes, but it's our only computer). During this time "N-trig" came on a lot, because the mouse would move erratically by itself.
    We can't seem to locate the device or drivers. Any help you can give us will be much appreciated.
  2. Triple6

    Triple6 Moderator

    Dec 26, 2002
    First Name:
    The cable for the touchscreen digitizer may have come loose during the LCD replacement.
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