The FDTI driver was not working when connection between PME and BenQ display failed. How to fix it?Please follow below steps to fix the FDTI driver issue:
(1) Download PME (Palette Master Element) that fits the OS on your PC/NB from local BenQ website.
(2) Remove all USB devices such as Wacom from the monitor, except the FTDI device and USB cable that connects to the PC/NB.
(3) If the FTDI driver still does not work, unplug the FTDI device and then replug.
(4) Reboot the PC/NB and start using PME to check if the FTDI driver works.Note that if two monitors are used simultaneously, ensure the extended mode, instead of mirror display mode, on your PC/NB is used to display the content on the monitors.
If the issue still exists, please contact BenQ local service center.