Re: How to setup dual video overlay with Quadro NVS
Normally there's some special "surface" for video rendering called video overlay. It is a sort of layer above your normal 2d desktop. This is also the reason you don't see the movie when you make a screenshot of your desktop.
Blitting is the "normal" way for displaying 2d.
If I understand it correctly that when you first play a movie it has overlay and when you close the movie and start a new one it becomes blitting it must be a driver bug. Have you already tried the opensource "nv" driver to see if it has the problem too as Nvidia's drivers don't like Xinerama very much.