[RPi] Direct Capture Mode on Linux

# pi
sudo apt-get install realvnc-vnc-server
sudo raspi-config
> 5. Interfacing Options.
> VNC
> Yes

# Ubuntu
如果直接用 vncviewer x.x.x.x 會報錯
No configured security type is supported by 3.3 VNC Viewer

要安裝 Standalone 版本，下載完 chmod 成執行檔以後使用
https://www.realvnc.com/en/connect/download/viewer/linux/
下載檔案：VNC-Viewer-6.20.529-Linux-x6.deb
執行檔：vnc-viewer-6.20.529-Linux-x64

https://help.realvnc.com/hc/en-us/articles/360002249917-VNC-Connect-and-Raspberry-Pi