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docs: multi-screen plan + ADR-047 (segments and per-screen views) - #1849
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This was referenced Oct 7, 2026
…ersedes ADR-015 §3–§4) Joint DisplayXR × LeiaSR plan for N screens, each bound to its own display processor with its own display info and its own xrLocateViews. Three decisions: screens as first-class registry objects with several plug-ins resident; a spanning window split into per-screen segments (own DP, origin, eyes, Kooima) instead of one atlas sliced at the boundary; per-screen views on the existing PRIMARY_MULTIVIEW_DXR surface via a display_info revision. Milestones M0–M6 with gates on ds1-linux; SR items P0–P3 (A–C merged on the LeiaSR Linux line 2026-10-07). Refs #69, #546, #793, #715, #46, displayxr-leia-plugin#43. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…ule; present-origin units Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
…sor on main); regenerate ADR index Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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This was referenced Oct 7, 2026
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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What
Why
ADR-015's split-weave is only correct when every screen shares the same eyes and geometry, and no prior doc addressed the OpenXR surface (one `XrSystem`, one view count, one `xrLocateViews`). Both LeiaSR agent sessions reviewed the SR facts; LeiaSR phases A–C (external weaver routing, display enumeration, display binding) merged on the Linux line on 2026-10-07 against this plan.
Status
Doc-only (CI short-circuits). M0 (Linux screen registry) is in flight on a separate branch; #546 is re-scoped to M2 and #69 becomes the epic.
Refs #69, #546, #793, #715, #46, DisplayXR/displayxr-leia-plugin#43.
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