Here I have the 7 inch 800x480 HDMI LCD Display connected with the TFP401 module from Adafruit. It works well with the Raspberry Pi 3B+ and the ASUS Tinkerboard. All of them works under ANDROID OS Platform. I tried to do so with the Khadas VIM1 (Marsmellow 6.0.1), but the display not shwoing anything. Does anyone know the solution for it? Thank you very much.