[CentOS] CentOS 7 and display managers

[Richard]

> Date: Friday, March 11, 2016 11:33:57 -0500
> From: m.roth at 5-cent.us
> 
> So, now that I've gotten that out, the KDE display manager, on the
> login screen, easily lets you choose window managers. Gnome utterly
> refuses to consider such an idea.
> 
> I've just yum groupinstall "KDE Plasma Workspaces" on one of my
> user's new system... and I cannot figure out, not in googling, and
> there's nothing vaguely obvious anywhere, how to change to KDE from
> gnome.
> 

With gnome there is a "gear wheel" on the password entry page -- on
the right below the password box, next to the "sign in" label. If I
select it I can switch between gnome and mate. Does KDE show there as
an option?