On Sun July 21 2019 12:14:48 J Leslie Turriff wrote:
> 	For quite a while now I've been unable to use TDEsu to open utilities that
> require root access, e.g. TDM configuration.  TDEsu freezes after I enter
> the root password and press Enter.

I see only one problem with your file permissions.  tdesud should be setgrp
in the nogroup group, not the root group.

tdesu is not designed for command line use.  It is a graphical interface
which uses /bin/su behind the scenes.

Does su (or sudo) work for you from the command line?

What happens if you click - T-menu / Trinity Control Center / System
Administration / Monitor and Display - and enter your root password?

--Mike