Tried again to install Daedalus on ASUS M5A97R2.0 Motherboard, Radeon RX 570 GPU, with 'contrib non-free' and 'non-free-firmware' added to sources list, but it still will not run two screens although they both work independently, and together they both show the start up code before the login screen is reached, but when logged in, they fail to work together. I have also tried starting with one screen plugged in and then adding the second screen but that failed too.

I tried to install Daedalus on my other computer, M5A97 R2.0 Motherboard, GeForce GTX 1050, all goes okay, boots up right until it's just about to flick to the login screen, then it hangs and goes no further.

So I've reinstalled Chimaera on both desktops as the one with two screens works and the other one boots up just fine, so Daedalus will have to wait till the future.