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ERROR_GRAPHICS_LEADLINK_NOT_ENUMERATED
What Windows rejected: graphics leadlink not enumerated
The useful interpretation of ERROR_GRAPHICS_LEADLINK_NOT_ENUMERATED (0xC0262431) starts at the linked boundary: the linked configuration exists but its lead adapter has not been enumerated. In practical terms, inspect lead member enumeration before changing application-wide graphics settings.
Build a useful diagnostic record
| Capture item | Why it matters |
|---|---|
| Rejected condition | the linked configuration exists but its lead adapter has not been enumerated |
| What to capture | lead device instance, chain members, PnP enumeration order and start state |
| Current graph state | lead adapter, chain members and their PnP/power transitions |
| Supporting trace | device-instance IDs, lead/chain role, PnP problem codes, Dx states and start/power IRP ordering |
| Object identity | lead member enumeration |
Separate state from capability
- Capture the failing state. Record lead device instance, chain members, PnP enumeration order and start state.
- Wait for lead enumeration or correct device ordering before starting the chain.
The comparison with ERROR_GRAPHICS_CHAINLINKS_NOT_ENUMERATED is especially useful: ERROR_GRAPHICS_CHAINLINKS_NOT_ENUMERATED concerns one or more non-lead members.
Verify the repaired path
Repair PnP enumeration dependencies and avoid caching partial chain membership.
- debug-layer, ETW or driver diagnostics no longer report the rejected lead member enumeration contract during the same scenario.
Implementation notes
Technical references
- Microsoft: DirectX graphics kernel subsystem — background for the lead member enumeration.
- Microsoft: WDDM architecture
- Microsoft: Display miniport driver requirements
- Microsoft: Graphics error codes
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