Ken Heard composed on 2017-08-04 01:27 (UTC-0400):

> I have just installed TDE-Trinity in my Stretch box.  On boot startx

Exactly how did you install it? (moot if anything below solves)

> opens x-server-x-org in F7, but the login manager does not appear.
> /opt/trinity/bin is in the PATH in /etc/profiles, and tdm-trinity is
> installed, but still no login manager. 

Startx is not supposed to open a login manager. It should open a default DE
session, which probably should be TDE in your case.

> Surely something else must be necessary to cause the login to appear.  I
> looked for guidance in the TDE instructions, but they are anything but
> clear.  Can somebody help me out?

Does /etc/X11/default-display-manager exist and contain /opt/trinity/bin/tdm?

What happens if you try

	dpkg-reconfigure tdm-trinity

???

Does

	systemctl status tdm.service

show enabled and on :0 and active? It needs to be if you want TDM's login
manager working.
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