On 07/03/2018 08:12 AM, Nick Koretsky wrote:
> On Tue, 3 Jul 2018 15:49:06 +0200
> Stefan Krusche <linux@...> wrote:
> 
>> Good day everyone,
>>
>> I'm using trinity 14.0.5 from preliminary stable builds on devuan ascii
>> (debian stretch).
>>
>> Through the most recent upgrade, that I executed on 2018-07-02 11:42:01,
>> tdm (amongst a couple others) got upgraded:
>>
>> tdm-trinity:amd64 (4:14.0.5~pre39-0debian9.0.0+6, 4:14.0.5~pre42-0debi
>> an9.0.0+6)
>>
>> After this upgrade tdm wouldn't start anymore and in /var/log/boot I
>> found this error message:
>>
>> Not starting Trinity Display Manager (tdm); it is not the default display
>> manager.
>>
>> The file is there:
>> $ ls -l /etc/X11/default-display-manager
>> -rw-r--r-- 1 root root 14 Jul  2 11:42 /etc/X11/default-display-manager
>>
>> And it says:
>> $ cat /etc/X11/default-display-manager
>> /usr/bin/slim
>>
>> Solution:
>>
>> $ dpkg-reconfigure tdm-trinity
>>
>> Of course, tdm was the default display manager already before the
>> upgrade, and, as you can guess from the above, slim is installed, too.
>>
>> I think, it should not be necessary to reconfigure the display manager,
>> or, least, the user should be prompted to do so at installation.
>>
>> IIRC, this happened already at the previous upgrade to ~pre39.
>>
>> Has anybody seen this? Do you think it is a bug?
>>
> 
> First, a you sure that slim wasnt updated too? Because if it was it is most
> likely bug in slim. If not than this looks like a problem with debconf
> database (or a bug in debconf).
> Look in /var/cache/debconf/config.dat for shared/default-x-display-manager
> and post a context of this section


There is no logical reason to have two DM's, simple solution, remove 
one or the other and there is no problem.
-- 
Jimmy Johnson

Devuan Jessie - KDE 4.14.2 - AMD A8-7600 - EXT4 at sda2
Registered Linux User #380263