Problems on Targus ACP70EU with VGA monitor

[gaelle]

Good morning everyone!

I hope nobody has already submitted such a thread (I search the forum and didn't found something similar)

I have since August 2013 a Targus Docking Station with a Sony VAIO Pro 13 (Windows 8.1) in dual screen with a VGA BenQ (yep, it's a new computer but an old screen). I'm using the VGA adapter of the station.

Everything worked fine until a few weeks, when the targus started not to recognize the VGA screen. I updated the software from 7.5 to 7.7, and it juste made it worse (before the screen was at least sometimes recognized, yet never).

I followed the process here and everything seems to be ok. My graphic tablet, headphone and keyboard are all working, meaning the targus itself is recognized. I run the DisplayLink Debug Tool and awkwardly it says to me that "the device is not connected"... I've attached the debug files to this thread.

Thanks a lot in advance for your help!
(and please excuse my english... I'm french )