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STATUS_GRAPHICS_OPM_SIGNALING_NOT_SUPPORTED
The requested output-protection signaling operation is unsupported
STATUS_GRAPHICS_OPM_SIGNALING_NOT_SUPPORTED is a Windows NTSTATUS value from the graphics/display facility. In this group, the status is tied to protected video output, OPM/COPP compatibility, PVP certificate validation, output-protection hardware, or the monitor configuration path.
OPM protection does not only set a single on/off flag. It can involve connector-specific signaling, protection levels, and status information for digital and analog outputs. This status means the requested signaling operation is outside what the output path and driver support.
Keep this distinct from HDCP resource exhaustion or invalid request format. A well-formed request can still be unsupported because the connector, display mode, driver, or physical output does not implement the signaling mechanism being requested.
What to check
- Log the connector type, requested signaling/protection GUID, and current display mode.
- Compare the driver-reported supported protections with the attempted operation.
- Avoid repeated retries with the same request; change the protection policy or output path instead.
References
- Microsoft: Supporting Output Protection Manager
- Microsoft: Handling protection levels with OPM
- Microsoft: OPM and display modes
- Microsoft: Configuring a protected output
- Microsoft: MS-ERREF NTSTATUS values
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