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STATUS_GRAPHICS_ADAPTER_MUST_HAVE_AT_LEAST_ONE_SOURCE
A WDDM adapter needs at least one video present source
The VidPN model represents display content producers as video present sources. An adapter that participates in display mode management must expose at least one source for the operating system to build a present network.
This status points to adapter enumeration or driver initialization rather than a single bad mode. It can occur if the miniport reports zero sources, if an initialization failure clears the source list, or if an indirect/virtual adapter is registered before its source capabilities are ready.
What to check
- Check the source count returned during adapter capability reporting.
- Verify initialization order: source capability data should exist before VidPN manager operations begin.
- For virtual display paths, confirm that the driver exposes a logical source even when no physical connector exists.
References
- Microsoft: Introduction to Video Present Networks
- Microsoft: WDDM design guide
- Microsoft: D3DKMDT display data types
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