I tried to connect a device (my old Nintendo Wii) with my Xiaomi Wemax One Pro projector running Android TV using a triple chinch to 3.5mm jack adapter. The projector recognises that a device is connected (it is white, not grey in the menu), but when I try to switch to the AV input, it says that there is no signal. I tried the exact same adapter with the exact same cables with a TV and another projector and it worked both times. Do I have to change any settings maybe? I hope that anyone can help me :-)
Thanks in advance!
It seems to be problem among other Xiaomi products as well. My MiTV also does the same however it happens for my PC (HDMI) in my case.
As for a solution, I haven't found the exact cause but turning HDMI 2.0 on and off sometimes fixes it. The rest of the times, I have to connect my PC to a monitor and then the TV also starts displaying.
It's weird and is surely a bug in the software (can't say due to Xiaomi or Google) because my Samsung monitor works fine all the time.