Even for making a first wild guess only, one would at least need to know the things below:
- Is your “Virtual WDDM Driver” replacing the original Virtual Box WDDM display driver?
- Or is your “Virtual WDDM Driver” running as a second additional WDDM adapter (heterogeneous adapter scenario)?
- Does your “Virtual WDDM Driver” include a virtual WDDM User Mode Driver?
- Or is it a virtual WDDM Kernel Mode Driver only?
- Are you installing DisplayLink USB and WDM hook drivers, too?
- Why are you writing a Virtual WDDM Driver" when already using DisplayLink drivers (which include WDDM display drivers)?
- Are you writing an own “Virtual WDDM Driver” because DisplayLink drivers don’t comprehensively work on virtual machines?
- Are you trying to write an own “Virtual WDDM Driver” to make DisplayLink drivers comprehensively work on virtual machines?
- Why are you using a mirror driver? Trying to compensate some DisplayLink VM limitations on Win7 NON AERO?
Enhancements to previous post:
DisplayLink drivers DO work in some VM scenarios.
DisplayLink drivers DO NOT work in some other VM scenarios.
That’s why there is no official support for them.
Still some companies are using them on VM in certain scenarios.
Marcel Ruedinger
datronicsoft