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STATUS_GRAPHICS_MODE_NOT_IN_MODESET
The lookup used the wrong set or obsolete mode
This status is a mode-set membership failure. The mode sought by the operation is not in the source or target mode set that is currently selected. It differs from an invalid mode descriptor: the mode may be well formed, but it is not part of this particular current collection.
Typical causes include using a mode from another source or target, caching a mode across a topology update, or checking a candidate before cofunctional enumeration has populated the new set. A guessed replacement mode can violate pinned constraints.
Prove membership before selecting
- Log mode-set handle, source or target ID, mode identifier, and topology generation.
- Reacquire the set after a stale-set indication or topology change.
- Use the current set to choose candidates; do not assume EDID support alone makes a mode available in the active VidPN.
References
- Microsoft: VidPN objects and interfaces
- Microsoft: Cofunctional mode enumeration
- Microsoft: Determining VidPN support
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