James D Freels wrote:

> It is at this point, where I need some help in how to fix it, and I
> suspect that all debian/buster users may have the same issue, but not
> sure of course.� I hope I can help get his bug fixed before the final
> release of TDE for buster.
> 
> Thanks again.
> 
> Jim Freels, PhD (retired)

I am amazed that no one suggested following:

There is a known bug related to systemd in /lib/systemd/system/tdm.service
Just comment out the Conflicts line

$ cat /lib/systemd/system/tdm.service
[Unit]
Description=Trinity Display Manager
Documentation=man:tdm-trinity(1)
#Conflicts=getty@... plymouth-quit.service
After=systemd-user-sessions.service getty@... plymouth-quit.service

[Service]
# temporary safety check until all DMs are converted to correct
# display-manager.service symlink handling
ExecStartPre=/bin/sh -c '[ "$(basename
$(cat /etc/X11/default-display-manager 2>/dev/null))" = "tdm" ]'
ExecStart=/opt/trinity/bin/tdm
Restart=always

regards