What does HRESULT 0x4026243C (ERROR_GRAPHICS_DEPENDABLE_CHILD_STATUS) mean?

 
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ERROR_GRAPHICS_START_DEFERRED EVT_WDSMCS_S_PARAMETERS_READ

ERROR_GRAPHICS_DEPENDABLE_CHILD_STATUS

Locate the failing graphics boundary: graphics dependable child status

ERROR_GRAPHICS_DEPENDABLE_CHILD_STATUS (0x4026243C) belongs to the graphics info layer. It marks the driver marked its child presence result as reliable for the current detection cycle, rather than a generic rendering failure. The object that owns the decision is authoritative display-child presence report.

Evidence that makes the result actionable

Capture itemWhy it matters
Rejected conditionthe driver marked its child presence result as reliable for the current detection cycle
What to capturechild UID, detection mechanism, timestamp, connector state and whether the result came from interrupt or poll
Current graph stateWDDM kernel/miniport callback and the transient object state carried by that callback
Supporting tracekernel graphics ETW, callback name, child or allocation identifiers, PnP state and the first returned NTSTATUS/HRESULT
Object identityauthoritative display-child presence report

A controlled comparison

  1. Capture the failing state. Record child UID, detection mechanism, timestamp, connector state and whether the result came from interrupt or poll.
  2. Compare one detection cycle with stable connector evidence against a deliberately indeterminate cycle.

The comparison with ERROR_GRAPHICS_UNKNOWN_CHILD_STATUS is especially useful: ERROR_GRAPHICS_UNKNOWN_CHILD_STATUS says the current presence answer cannot be relied upon.

Correction and proof

Use the result to update topology while retaining normal hot-plug invalidation rules.

  • debug-layer, ETW or driver diagnostics no longer report the rejected authoritative display-child presence report contract during the same scenario.

Implementation notes

Technical references


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