On Wed, Mar 18, 2020 at 10:55 PM Michele Calgaro via trinity-users <trinity-users@lists.pearsoncomputing.net> wrote:

Hi Snidely,
I can't recall any late change that should introduce this problem, but of course I may be wrong.
In any case it is a problem worth an issue on TGW. If there is an option for not using cups and this is not abided, it
means there is a bug :-)
Cheers
  Michele

I guess it had been a while since I did a build on this system. I figured it out, it was this:

http://mirror.git.trinitydesktop.org/cgit/tdebase/commit/?id=28771943f7c5cbdb17754a962c668f6b61013d04
tdeprint: autostart of KJobViewer is now controlled by a .desktop file.

With the introduction of the autostart desktop file, it was invoking KJobViewer which wasn't happy without tdeprint_cups.

I simply removed /opt/trinity/share/autostart/kjobviewer-autostart.desktop and it will bother me no more.

I guess I should have looked at the git change history,  but I was hoping someone knew offhand what might have done it.

Thanks