VIM3/VIM3L Dual screen abnormal display function

VIM3 Board currently supports HDMI and Mipi screen display, so it can realize the dual screen display function. Here we release an application demo of dual screen display, which is developed based on Android present.For details of presentation, please refer to the official documentation of Google

The app runs as follows

Demo app download link
https://github.com/khadas/khadas_dual_video_screen

Demonstration steps
1,VIM3 firmware supports Dual screen abnormal display, connected to HDMI display + MIPI display
2,Install dual screen demo app
3,Copy an MP4 video to / sdcard / directory, named test. mp4
4,Open the dual screen demo app and display the video on the secondary screen. The main screen can operate other applications normally
5,Click on dual screen demo appagain to turn off the dual-screen display