{
  "主题": "USB-C 扩展坞带多屏降到 30Hz，怎样整理能力与输出证据",
  "证据类型": "编辑构造的合成样例；不是设备实测",
  "演示输入": {
    "synthetic": true,
    "width": 3840,
    "height": 2160,
    "refresh_hz": 60,
    "bits_per_pixel": 24,
    "expected_active_payload_bps": 11943936000,
    "cases": [
      {
        "topology": "direct_one",
        "measured": false
      },
      {
        "topology": "dock_two",
        "measured": false
      }
    ]
  },
  "现场空白记录": {
    "主机型号端口": "",
    "显卡驱动": "",
    "扩展坞型号固件": "",
    "连接技术": "",
    "线材": "",
    "屏数组合": "",
    "声明来源页码": "",
    "活动模式": "",
    "色深格式": "",
    "实测": ""
  }
}