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ERROR_GRAPHICS_LEADLINK_START_DEFERRED
Locate the failing graphics boundary: graphics leadlink start deferred
The useful interpretation of ERROR_GRAPHICS_LEADLINK_START_DEFERRED (0x40262437) starts at the graphics info boundary: Windows temporarily deferred starting the lead adapter until the linked configuration reached a usable state. In practical terms, inspect linked-adapter lead start scheduling before changing application-wide graphics settings.
Evidence that makes the result actionable
| Capture item | Why it matters |
|---|---|
| Current graph state | WDDM kernel/miniport callback and the transient object state carried by that callback |
| Supporting trace | kernel graphics ETW, callback name, child or allocation identifiers, PnP state and the first returned NTSTATUS/HRESULT |
| Object identity | linked-adapter lead start scheduling |
| Rejected condition | Windows temporarily deferred starting the lead adapter until the linked configuration reached a usable state |
| What to capture | lead and chain device instance IDs, PnP state, power state, start IRPs and deferral reason |
A controlled comparison
- Start the linked stack from a clean boot and compare ordering with the chain devices already started.
The comparison with ERROR_GRAPHICS_START_DEFERRED is especially useful: ERROR_GRAPHICS_START_DEFERRED applies to a general adapter start rather than specifically the lead link.
Correction and proof
Allow PnP to complete the deferred sequence and fix dependency ordering rather than forcing repeated starts.
- debug-layer, ETW or driver diagnostics no longer report the rejected linked-adapter lead start scheduling contract during the same scenario.
Technical references
- Microsoft: Graphics error codes — background for the linked-adapter lead start scheduling.
- Microsoft: DirectX graphics kernel subsystem
- Microsoft: Introduction to VidPNs
- Microsoft: WDDM TDR overview
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