garageCube

Dear Community
I'm using maddmapper with 8 projectors and dual Quadro A400 GPU Card
i notice while I'm adding new output that it's using intel graphic, how i can change that ?

No it's not using Intel GPU, it's just showing to which GPU your display is attached.
Because of OpenGL constraints on Windows, MadMapper will use the GPU attached to the display set as "Main Display" in Windows preferences.