On Tuesday 03 July 2018 07:54:51 Thierry de Coulon wrote:
> On Tuesday 03 July 2018 15.49:06 Stefan Krusche wrote:
> > Good day everyone,
>
> (...)
>
> > Through the most recent upgrade, that I executed on 2018-07-02 11:42:01,
> > tdm (amongst a couple others) got upgraded:
>
> (...)
>
> > After this upgrade tdm wouldn't start anymore and in /var/log/boot I
> > found this error message:
>
> (...)
>
> > Solution:
> >
> > $ dpkg-reconfigure tdm-trinity
>
> (...)
>
> > Has anybody seen this? Do you think it is a bug?
> >
> > Regards,
> > Stefan
>
> Debian Stretch here. Same thing happened with tha last update/upgrade
>
> Obviously Debian/Devuan got updated too and reset the display manager. As
> far as I am concerned it's not a bug, just an result of the distribution
> not respecting modifications by the user and going back to some config file
> it used for it's own setup.
>
> I my case I found myself loging in from Gnome again.
>
> Thierry

Right, somehow the default display manager got changed to slim? I have only 
used Debian Stretch and/or Devuan Ascii a little, before reverting to Jessie, 
but I recall some similar glitches. Somehow it got changed in the 
update/upgrade. 

You can get this back by running dpkg-reconfigure tdm. Otherwise it should 
come up when you run apt-get to install packages. If you use aptitude, etc., 
then you may see something else, or maybe it just chooses slim or your most 
recently installed dm as default. (Also, it occurs to me that tdm comes up as 
tdm-trinity in some versions, but as just tdm in others; you should be able 
to pick the right one, in any case.) 

Here you are presented with a choice of display managers, depending on what 
you have installed: 

kdm
gdm
lxdm
slim
tdm or tdm-trinity
xfce

(You probably won't have them all installed.) 

Make your choice, hit okay, then you should be back to normal on reboot, 
unless you have changed something else, or uninstalled or misconfigured 
something. 

Bill