So, we’ve updated to 7.5, and for two machines–A Dell Precision M4800, and a Dell Precision 7510..both running Radeon cards–we no longer get the GDM Greeter login box NOR can we switch to virtual text login terminals. It’s been driving me nuts. The systems do allow for SSH
logins, so that’s how we get to them, but I’ve checked the Xorg.0.log and nothing stands out. Did a systemctl status gdm.service and got this:

Did the upgrade break something? Possibly. Any and all hints/ideas/etc. greatly welcomed.

PEV