Yeah this was confusing he said that it was an Nvidia issue which is why I thought it was on Windows.<p>As far as WDDM goes 2.0 requires that for sure I&#x27;m pretty sure this was part of the original WDDM GPUMMU spec also but I can&#x27;t really find those details anymore on MSDN since most of the pages refer to 2.0 atm.