I have Enlightenment 0.24-git (AUR). Some environments (Enlightenment, KDE) cannot correctly detect the second screen in the laptop connected to it.
HDMI-1 is missing (on Wayland only).
I don't know what information is needed to locate the problem.
Computer is a laptop with two graphics cards (PRIME) - Radeon Vega 10 and Radeon RX 5500M.
I don't know what data you need.
/sys/class/drm correctly displays information for two screens.