Focused triage of marfrit/libva-multiplanar#1 — dmabuf-wayland green
on ohm independent of decoder backend. Locked question: identify the
layer responsible (libva / ffmpeg / KWin / Mesa-panfrost / kernel)
and file upstream where appropriate. Performance is explicitly out of
scope — user has working slow path via vo=gpu hwdec=v4l2request.
Phase 0 deliverables: vaExportSurfaceHandle + AVDRMFrameDescriptor
modifier captures, Wayland linux-dmabuf-v1 advertise snapshot, pacman
upgrade timeline review for the iter5→iter8 regression window, and
stock-kwin A/B isolating kwin-fourier as a candidate.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
