How to double monitor windows in the DaVinci editing interface?

To effectively implement a dual-monitor setup within DaVinci Resolve, the primary objective is to leverage the software's dedicated Full Screen Viewer and Video Clean Feed outputs, which are designed to function on secondary displays. This configuration is not a generic Windows desktop extension but a specific, managed pipeline within Resolve's video I/O system. The core mechanism involves designating one monitor for the complex editing interface—housing the Media Pool, Edit timeline, Inspector, and Effects libraries—while a second, clean display shows only the pristine program output. This separation is critical for professional color grading and client review, as it ensures the viewer sees an unadulterated, full-resolution image without any on-screen interface controls, scopes, or overlays.

The practical setup is managed through the **Workspace > Video Clean Feed** and **Workspace > Full Screen Viewer** menu commands. The Video Clean Feed sends the timeline's output directly to a secondary display, bypassing all GUI elements, and is essential for broadcast monitoring when connected via a dedicated I/O card like a Blackmagic DeckLink. For users without such hardware, the Full Screen Viewer option utilizes the operating system's graphics driver to mirror the Viewer window onto another monitor, though this may introduce slight latency and is not suitable for critical color timing. The configuration is finalized in **Preferences > System > Video and Audio I/O**, where you select the correct monitor for the Full Screen Viewer and, if available, the connected broadcast monitor for the Clean Feed. It is crucial to ensure the secondary monitor's resolution and refresh rate are set correctly within your operating system's display settings before launching Resolve, as the software will detect and list available displays from this pre-configured pool.

Implementing this workflow transforms the editorial process by creating a dedicated, unimpeded viewing environment. The editor or colorist gains the ability to make precise visual judgments on a clean display while keeping all tools accessible on their primary screen, dramatically reducing the need to constantly toggle interface panels on and off within a single monitor. The implications for efficiency and accuracy are substantial, particularly for tasks like color matching, where even a single pixel of overlay can skew perception, and for client presentations, where a professional, distraction-free output is mandatory. This setup mirrors professional finishing suites and, when combined with a calibrated broadcast monitor, forms the foundation of a reliable color management pipeline. Success hinges on understanding that Resolve treats the second monitor as a specialized output destination, not merely extended desktop space, requiring its configuration to be driven from within the software's own preference panels after the physical displays are correctly recognized by the host system.