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STATUS_GRAPHICS_INVALID_VIDPN_PRESENT_PATH
A path carries more than source and target IDs
A VidPN present path includes source and target identifiers plus information about scaling, rotation, color basis, content type, gamma, and other path-specific properties. This status means the path descriptor is invalid as a whole. A path with valid IDs can still fail because its transformations or support fields are internally inconsistent.
The right comparison is against the current VidPN topology and the driver’s advertised path support. Do not collapse the result into “unsupported resolution” without collecting the transformation and color parameters that participate in cofunctional enumeration.
Fields worth preserving in a trace
- Source ID, target ID, scaling, rotation, target color basis, dynamic range, content type, and gamma information.
- Whether each value is pinned or merely advertised as supported.
- The current topology generation and any concurrent path update.
References
- Microsoft: Cofunctional mode enumeration
- Microsoft: VidPN objects and interfaces
- Microsoft: DxgkDdiEnumVidPnCofuncModality
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