2018-06-20, 19:33 (This post was last modified: 2018-06-20, 19:45 by fritsch.)
I only use HDMI 2.0 via Display Port. You need edid for both outputs. Your AVR's for HDMI-1 and your TV's for DP2. Btw. this got broken on kernel 4.15 or later upstream ... so it might just crash the kernel.
First decide what functions / features you expect from a system. Then decide for the hardware. Don't waste your money on crap.