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ERROR_GRAPHICS_OPM_ALL_HDCP_HARDWARE_ALREADY_IN_USE
HDCP capacity is already allocated to other outputs
This result is about an adapter-wide hardware resource, not a claim that the selected monitor lacks HDCP. Some display adapters can protect only a limited number of physical outputs at the same time. A configuration that succeeds with one protected connector can therefore fail after another output begins using the adapter’s available HDCP hardware.
The important diagnostic unit is the full active display topology: docks, MST branches, displays, virtual displays, and cloned or extended paths can change how many physical outputs require protection. Retrying the same configuration without changing that topology is not a meaningful repair.
How to investigate without losing the context
- Capture the active outputs and which ones currently have HDCP enabled before issuing the failing
Configurecall. - Distinguish this from
ERROR_GRAPHICS_OPM_OUTPUT_DOES_NOT_SUPPORT_HDCP: this code means support may exist, but the available hardware capacity is exhausted. - When output topology changes, re-evaluate every OPM object because protection is configured per physical output.
References
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