Amplifier arrived today, plugged in to my 6m old cable,and a 2m cable. Powered from usb. Now its working, playing doom eternal in 4k, running at 60fps, but getting occasional black screen, every few minutes,
Tried again now nothing.no 2nd screen shown in settings. Think it must be the old cable that's faulty.or is a 1.4 cable. new cable will be here tomorrow.