: Set your external display as the "Primary Monitor" in Windows settings before launching Resolume. Then, drag the Resolume interface back to your laptop screen. 3. Verify Video Codecs
Resolume Arena treats outputs as distinct screens. If your operating system is set to "Mirror" displays (where your laptop screen and the projector show the exact same image), Resolume may get confused about how to address the second screen. resolume arena black screen
Often, the "black screen" is simply because the output is not active or correctly routed. : Set your external display as the "Primary