Hi
today i installed new version of Unity, Unity-2018.2.0b2 ,and when i tried to start it after installation,i received this in terminal,and unity splash screen showed,but nothing happened.
The Unity editor doesn’t support Wayland yet.
It should Just Work using XWayland, but you can force it by setting GDK_BACKEND=x11 in the environment where you launch Unity.
Just FYI for anyone stumbling on this, setting the GDK_BACKEND=x11 resolved this same issue for me. I’m on OpenSuse 42.3 but should likely work for Centos 7.5 and others.