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STATUS_GRAPHICS_INCOMPATIBLE_PRIVATE_FORMAT
Private primary-surface format metadata changed incompatibly
STATUS_GRAPHICS_INCOMPATIBLE_PRIVATE_FORMAT is a Windows NTSTATUS value from the graphics/display facility. It belongs to the WDDM kernel display stack rather than to a Win32 GDI error alone, so the useful context is usually the adapter, VidPN object, child device, present path, or primary allocation involved in the call.
Display miniport drivers can associate private format attributes with primary surfaces. This status means a supplied primary surface differs from the current primary in a private-format property that must remain compatible across the operation.
The visible pixel format may not tell the whole story. Vendor-private tiling, compression, scan-out layout, or metadata can make two surfaces incompatible even if their public mode size looks similar. Diagnose the allocation attributes alongside the public format fields.
What to check
- Compare public format, private format, tiling/compression flags, and allocation layout for both surfaces.
- Recreate the primary instead of reusing an allocation when private format changes are not supported.
- Check driver-specific logs for the private attribute that triggered the rejection.
References
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