[CentOS] Upgraded to 7.10 from 6...

Thu Apr 2 22:19:53 UTC 2020
mark <m.roth at 5-cent.us>

Let me start out by making clear I *LOATHE* gnome, ok? So I don't want 
to hear about it.

What's happening is this: I did this:
yum groupinstall "Development and Creative Workstation"
yum groupinstall "KDE Plasma Workspaces"

Now, when I go in graphical mode, I try to change to kde on login. Nope 
- minutes later, I can see a cursor, and a gray screen. Ditto on the 
"safe mode", and ditto on "gnome classic".

What have I missed?