On Wednesday 16 of September 2020 18:52:23 Uwe Brauer via tde-users wrote:
When updating tdm-trinity package, there may happen that the "alternatives" mechanism causes a switch to another logon manager. It is not yet clear to us why this is happening. You use "dpkg-reconfigure tdm-trinity" to fix the situation.
I completely turned the machine off and rebooted, then trinity was back again, alas with the kicker problem,
So I will try apt-get dist-upgrade now.