Hi,
I have M3800 touch screen (QHD with SSD) model. I recently update the system to Windows 10 (frm Windows 7) and after that I found that my touch screen is not working.
I found that the touch screen is not recognized, its shows as "No pen or Touch Input is available for this Display". I also failed to find any HID complaint driver for the Touch screen.
I have tried reinstalling the Windows 10, and I have tried reinstalling all the drivers for windows 10, that are available in Dell support and driver page.
I have also turned off "allow the computer to turn off this device to save power" option for each USB hubs in device manager, so that the system does not turn off the USB responsible for Touch screen.
but my issue is still unresolved, Its driving me mad and I will be great full if anybody can post a suggestion to fix the problem.
thanks,