https://blog.wongcw.com/2020/11/27/thinkpad-x1-fold%e6%8a%98%e7%96%8a%e5%b1%8f%e9%9b%bb%e8%85%a6%e8%a9%95%e6%b8%ac%ef%bc%9apc%e6%96%b0%e5%bd%a2%e6%85%8b%e7%b4%b0%e7%af%80%e4%bb%8d%e9%9c%80%e6%89%93%e7%a3%a8/