Comment by rep_lodsb

4 months ago

Confusingly written article, to the point of being unreadable unless you already know exactly how graphics drivers in Windows work.

"WDDM is a major overhaul that shifts responsibility of managing the GPU away from Win32k and gives better control over the GPU to the driver vendor. Dxgkrnl.sys, the DirectX graphics driver, talks to a miniport driver to provide varying levels of WDDM interfaces."

"Officially starting with Windows 8, every GPU driver for the system had to be a WDDM driver. But all that was really dropped was the miniport driver."

"For WDDM, the communication back to the miniport driver is more direct."

So does the miniport driver exist in modern Windows at all (and is an essential part of how WDDM works), or was it dropped?