Zettelkasten - fourier

attribution_2026-05-03

Anonymous (anonymous@undisclosed.example.com) — 2026-05-04T07:24:51+00:00

fourier_attribution — Phase 5 review (2026-05-03) Single-question matrix campaign. Operator: mfritsche. Reviewer: handover to fresh model instance per 8(+1)-phase loop Phase 5. Local artifacts: /home/mfritsche/src/fourier_attribution/ on noether. Predecessors (substrate, NOT data):

brave_arm64_vaapi_wall

Anonymous (anonymous@undisclosed.example.com) — 2026-05-21T14:46:41+00:00

Brave 148 ARM64 + Mali-Bifrost / hantro VPU + libva-v4l2-request-fourier — definitive HW video decode wall Verdict: Brave-bin on PineTab2 (and structurally on any RK3566/RK3568 Mali-Bifrost + hantro stack) cannot engage hardware video decode. The wall is

chromium_fourier

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T04:16:41+00:00

chromium-fourier — what we get + how we approach Brave " Update 2026-04-28: This page captures the state on 2026-04-26. The campaign has since grown into 4 sibling patch series + 1 kernel RFC; the current 4-patch chromium-fourier shape and the end-to-end ohm

hosts

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T04:22:21+00:00

fourier — per-host status Snapshot of where fourier packages are installed / built across the fleet, as of 2026-04-28 evening. Index: start. ohm — PineTab2 (RK3566 / Mali-G52 / panfrost / Plasma 6.6.4) Reference target. The host where end-to-end validation lives.

journey

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T04:16:42+00:00

fourier — journey Chronological account of how a single-patch chromium V4L2 dispatch unlock turned into a 4-series + RFC + 3 upstream draft campaign. Each step uncovered the next layer's contributing bug. Index: start. The cascade * Started as a single chromium V4L2 dispatch unlock

patch_series

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T04:16:41+00:00

fourier — patch series in detail Snapshot of the four sibling patch series as of 2026-04-28 evening. Index: start. chromium-fourier (4 patches, validated end-to-end on ohm) Reference target: ohm — PineTab2 / RK3566 / Mali-G52 / panfrost / mainline kernel 6.19.10 / KDE Plasma 6.6.4 Wayland.

phase5_2026-04-30

Anonymous (anonymous@undisclosed.example.com) — 2026-04-30T10:19:32+00:00

fourier — Phase 5 review handover, 2026-04-30 Second-model review artifact. Goal/situation/measurements/plan; uncurated. Reviewer reads top-to-bottom, redacts as needed, then hands to a fresh model instance. Index: start. Origin: prior Phase 1 metric (

start

Anonymous (anonymous@undisclosed.example.com) — 2026-04-30T10:26:31+00:00

fourier — multi-layer V4L2 hardware-decode unlock for mainline ARM Wayland A patch campaign that started as a single Chromium V4L2 dispatch unlock and expanded — every time a layer was patched, the next layer's bug surfaced — into 4 sibling patch series + 1 kernel

upstream_submissions

Anonymous (anonymous@undisclosed.example.com) — 2026-04-30T08:56:58+00:00

fourier — upstream submission drafts Three submission drafts. Live in gitea/marfrit-packages under upstream-submissions/. Index: start. qt6-base-fourier → bugreports.qt.io + Gerrit * File: upstream-submissions/qt6-base-fourier/qt-bug-report.md * Targets: bugreports.qt.io issue + Qt Gerrit MR

vb2_dma_resv_rfc

Anonymous (anonymous@undisclosed.example.com) — 2026-04-30T08:56:19+00:00

fourier — vb2-dma-resv kernel RFC 3-patch kernel RFC. Sent to linux-media + dri-devel + linaro-mm-sig + linux-rockchip + linux-arm-kernel + linux-kernel on 2026-04-29 19:53 UTC. Index: start. Status (2026-04-30) * v1 sent: Cover Msg-Id <20260429195306.239666-1-mfritsche@reauktion.de>. Thread on lore: