LT1421 Black Screen
 

Hey Guys,

I just bought a Lenovo LT1421 USB monitor today, and tried hooking it up to my 2012 MacBook Pro running Yosemite 10.10.2. I've installed the latest drivers (DisplayLink_Mac_2.4b1.dmg), and it did not work. I then uninstalled it completely, and also repaired disk permissions. I then went ahead and reinstalled, but I still get a black screen. The display is on, and I can even adjust the brightness. It also shows up in the displays list. The only thing missing is the image. Please help!

Log file attached.