C0-010 · EXPERIMENTAL BOARD · PHYSICAL HDMI TEST · 2026-10-11

From supplier archives to real pixels. 从供应商已有资料，到真实 HDMI 显示。

An Allwinner T736 evaluation board originally showed no picture on HDMI. Rather than treating a supplier response as the sole route to resolution, a human-supervised AI-assisted engineering workflow independently compared the board reference, locally mirrored Ubuntu firmware, Device Trees and Linux display source. A minimally changed boot image enabled HDMI, and a bounded chipset-generated pattern test reached a positive human-reported visual result. 一块 T736 Ubuntu 实验板原本插入 HDMI 没有画面。我们从既有规格书、原理图、供应商固件、U-Boot／Linux 设备树及 BSP 源码中自行建立证据，经人类明确授权完成最小显示路径切换，再通过原厂芯片内部图案取得现场报告显示成功。这不是简单复述技术资料，而是将原本不可用的硬件能力推进到可验证的现实结果。

HDMI HPD + EDID · VERIFIED 1080p DRM + PLANE · VERIFIED PHYSICAL PATTERN · OPERATOR REPORTED SUCCESS XORG DESKTOP · STILL PENDING

Observed engineering facts · JSON Supplier sources & boundaries Why this matters for e-Person

51 GBApproximate local vendor documentation / firmware mirror

3Linux DTB display statuses changed; original kernel and ramdisk preserved

1080p1920×1080 @ 60 Hz, KMS CRTC + framebuffer + primary plane verified

3 stagesTCON, HDMI FC red and FC blue commands; operator reported success

Acceptance boundary / 验收边界： This is a single experimental board and a human-attested test session, not a certified shipping product, independent video recording of every color, stable Ubuntu desktop or autonomous agent release. 这是一台实验板的有界研究成果。日志验证三阶段均执行成功，用户现场报告成功；未逐项保存每一种颜色的独立视频或照片。 Xorg／LightDM 仍有故障，HDMI 长期稳定性与无人值守运行仍待验证。

HOW THE CAPABILITY WAS FORMED · FROM EVIDENCE TO ACTION

Six verified transitions from source to Reality 六个步骤，让原本没有 HDMI 画面的开发板形成新能力

01 · Resolve the physical product The supplier's HelperBoard T736 manual identified the HDMI connector; a board schematic confirmed HDMI TX, hot-plug and DDC circuits. 从板卡照片定位 HDMI 插口，并核对原理图中的信号通道，而不是仅凭接口外观判断。

02 · Compare the real firmware variants Local supplier files contained separate Ubuntu HDMI 1080p and MIPI 720×1280 firmware images. Both passed their supplier checksum manifest. Extracted U-Boot and Linux Device Trees revealed the selected display route. 离线核对两份原厂固件和校验值，提取 DTB；确认当前系统选择了 MIPI，而 HDMI 版本另有明确的板级配置。

03 · Back up before changing hardware state The experimental board's boot resources, environment, boot image, UFS reserved boot region and active FDT were read back with exact hashes. A scoped Linux-only candidate changed three display-status properties while preserving the current Ubuntu kernel and ramdisk. 先取得真实启动链备份，再仅对三个显示状态作最小修改；不以 1.4 GB 全量固件覆盖现有系统。

04 · Execute only with human authorization A human supervisor explicitly authorized one 64 MiB boot-partition write and one real reboot. The boot image was independently re-read and hashed, and a distinct Boot ID confirmed actual restart. 经人类明确授权才写入指定 boot 分区、完整 SHA256 回读，再执行一次真实重启；Ubuntu 数据没有作为显示测试的替换对象。

05 · Record the negative results, then isolate them HDMI-A became registered; hot-plug and 256-byte EDID were read; 1920×1080 mode, CRTC and primary framebuffer binding were verified. Still, standalone KMS mode setting produced no human-visible picture, while Xorg crashed. Those failures were retained—not counted as success. 系统识别 HDMI、EDID、1080p 和 framebuffer 后，屏幕仍无画面，Xorg 亦发生崩溃；严格保留负面结果，继续追查真正显示路径。

06 · Reuse the vendor's own silicon test path Supplier HDMI DRM guidance and local kernel-source review identified the on-chip TCON pattern path and HDMI internal Frame Composer generators. A bounded three-stage test ran TCON bars, FC red and FC blue; its cleanup was observed. The on-site human reported that the display test succeeded. 在原厂 HDMI DRM 开发资料和驱动源码中找到 TCON 彩条及 HDMI 内部红／蓝图案测试，逐阶段执行并恢复默认状态；现场人员报告显示成功。第一次将资料解析接续到了可见的实物输出。

e-PERSON · HUMAN-SUPERVISED, LOCALLY GROUNDED WORK

A worker is measured by an accepted result, not an AI label. e-Person 的价值：能把真实工作接住、做出结果，并留下可信证据。

This case illustrates a human-supervised AI-assisted work pattern: a physical device and existing supplier knowledge become usable evidence; a bounded technical decision becomes an authorized local action; machine readbacks and a human's visual observation distinguish an actual result from a successful-looking command.

从已有资料、真实设备、可信来源与版本，经过比较和判断形成可执行工作包，由人类监督授权，在现场执行与回读，最后把事实、失败、成功和下一项工作都交接清楚。这才是面向全球的 e-Person 工作能力可对外展示的内容。

Truthfulness: this was not an independently deployed autonomous e-Person. The human operator retained authority and physical responsibility; the engineering research used AI assistance and authenticated tools. The public record demonstrates the method and a bounded real outcome, not a general permission for future agents to modify hardware without supervision. 这不是宣称某个独立自治电子人已自行改写设备；人类拥有最终授权和现场验收权，技术结论只对这块实验板与本次测试成立。

e-Person for Me · 让能力为我工作 T736 · Complete Work Ecosystem

OPEN EVIDENCE · OUTSTANDING GATES

What is proved—and what must still be built 本次到此通过，但不把研究演示写成生产产品

Accepted within scope: verified vendor/source comparison, stable original boot backups, guarded single-device HDMI Linux config change, a real reboot, HDMI detection and valid EDID, DRM/1080p mode/plane evidence, completed manufacturer internal TCON/FC test, and a positive human-reported screen result.

Not yet accepted: Ubuntu Xorg/LightDM graphical desktop, long-duration HDMI stability, unattended NPU restoration, external WD boot automount safety, and any production-wide reliability or other-board claims.

下一阶段可以研究如何让 Xorg 桌面持续稳定、USB/网络与显示共同恢复、以及如何让其他本地节点复用同一验证方法。必须分别验收，不能从这一次彩条显示外推。

Source rights: the supplier manuals, schematics, firmware images and driver source were studied locally and are not redistributed. Only original HSIMC summary facts, evidence classifications and source digests are public.

Evidence observations · JSON Source / rights / reproducibility map C0-009 · Before HDMI Continue Evidence library