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ERROR_GRAPHICS_INVALID_VIDPN_TARGETMODESET
ERROR_GRAPHICS_INVALID_VIDPN_TARGETMODESET (0xC0262309) means WDDM rejected a target mode-set object. A target mode is a video signal format delivered to a display target; it is distinct from the source surface that the GPU scans out.
What a target mode set is used for
Each VidPN target has its own set of candidate signal modes. The set changes when the topology changes or when other pinned modes constrain the adapter. The miniport uses it while determining whether a complete, cofunctional VidPN can be implemented on the hardware.
Checks that identify the broken layer
- Confirm that the target ID belongs to the current adapter child relation and that the mode-set handle was acquired for that exact target.
- Rebuild target choices after hot-plug, docking, a link retrain, or a monitor capability change; do not reuse a prior target mode set.
- Ensure every candidate timing, color basis, pixel rate, and transmission capability is compatible with the selected path and any pinned source or target mode.
- Keep the target mode set separate from the monitor source mode set. The latter represents monitor-provided capability data; the VidPN target set represents adapter-usable output modes.
Useful comparison
Linux KMS uses a different API, but it has the same architectural separation between display pipeline objects and the connector that represents the physical endpoint. That parallel is useful when checking whether a driver confused a hardware route with a monitor capability record.
Microsoft: introduction to Video Present Networks
Microsoft: VidPN source, target, and monitor objects
Linux kernel: DRM kernel mode setting pipeline
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