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ERROR_GRAPHICS_START_DEFERRED
Why this is not a generic GPU failure: graphics start deferred
Windows reports ERROR_GRAPHICS_START_DEFERRED (0x4026243A) at the graphics info checkpoint. Here, adapter start was postponed because a prerequisite state transition had not completed. That narrows the first investigation to display-adapter PnP start scheduling instead of the entire GPU stack.
The smallest evidence set
| Capture item | Why it matters |
|---|---|
| Object identity | display-adapter PnP start scheduling |
| Rejected condition | adapter start was postponed because a prerequisite state transition had not completed |
| What to capture | device instance, PnP problem code, parent and dependency states, power transition and start-attempt order |
| 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 |
A/B test for the exact condition
- Capture the failing state. Record device instance, PnP problem code, parent and dependency states, power transition and start-attempt order.
- Observe a normal boot/start trace and compare with the sequence that triggers deferral.
The comparison with ERROR_GRAPHICS_LEADLINK_START_DEFERRED is especially useful: ERROR_GRAPHICS_LEADLINK_START_DEFERRED is specific to the lead member of a linked-adapter chain.
Safe remediation
Let the prerequisite transition complete and remove ordering defects in the driver or device stack.
- debug-layer, ETW or driver diagnostics no longer report the rejected display-adapter PnP start scheduling contract during the same scenario.
Implementation notes
Technical references
- Microsoft: Graphics error codes — background for the display-adapter PnP start scheduling.
- Microsoft: DirectX graphics kernel subsystem
- Microsoft: Introduction to VidPNs
- Microsoft: WDDM TDR overview
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