Dell xps 14z mini displayport

Hi, i have a Dell xps 14z, and i buy a AmazonBasics Mini DisplayPort to VGA Adapter and i want to connect a external monitor Samsung syncMaster 920Nw, I try to connect and no image appears, I have windows 8.1 64 bits

I tested the adapter to a TV that has a VGA input and I tasted monitor to a computer that has vga output and they worked properly.

I do not know what could be happening or the adapter does not work with dell laptops