PTP挂钟不实用且过于精确
作者在观看Oliver Ettlin关于精确时间协议的演示后，尝试复制其PTP挂钟项目，发现这种基于网络时间同步的时钟虽然精度极高，但在实际使用中并不实用。
相关报道
The author describes modifying an HDMI dummy plug's EDID data using a Raspberry Pi to change the monitor it emulates. The dummy plug originally acted as a 4K monitor but needed to be changed to a simpler resolution.