Finally solutionned it via the GUI.

Had to understand the role of the UID's in the configuration.

Once correctly set (max "number 1", min  "number 2"), it worked. (relationning 
them when the numbers shown in the GUI "KUsers").

Here is now my tdmrc :

QUOTE


[General]
ConfigVersion=2.3
ConsoleTTYs=tty1,tty2,tty3,tty4,tty5,tty6
PidFile=/var/run/tdm.pid
ReserveServers=:1,:2,:3
ServerVTs=-7
StaticServers=:0

[Shutdown]
BootManager=None
HaltCmd=/sbin/poweroff
RebootCmd=/sbin/reboot

[X-*-Core]
AllowNullPasswd=false
AllowRootLogin=false
AllowShutdown=Root
AutoReLogin=false
ClientLogFile=.xsession-errors-%s
Reset=/etc/trinity/tdm/Xreset
Session=/etc/trinity/tdm/Xsession
SessionsDirs=/usr/share/xsessions,/var/lib/menu-xdg/xsessions,/opt/trinity/share/apps/tdm/sessions
Setup=/etc/trinity/tdm/Xsetup
Startup=/etc/trinity/tdm/Xstartup

[X-*-Greeter]
AntiAliasing=true
ColorScheme=
Compositor=
EchoMode=OneStar
FaceSource=PreferUser
FailFont=Sans Serif,10,-1,5,75,0,0,0,0,0
GUIStyle=
GreetFont=Sans Serif,22,-1,5,50,0,0,0,0,0
GreetString=Welcome to %n
GreeterPos=50,50
HiddenUsers=systemd-coredump,root,@video,@users,@scanner,@root,@pulse-access,@plugdev,@pulse,@netdev,@lpadmin,@floppy,@disk,@dip,@cdrom,@bluetooth,@audio
Language=fr
LogoArea=None
LogoPixmap=/opt/trinity/share/apps/tdm/pics/tdelogo.png
MaxShowUID=1000
MinShowUID=500
Preloader=/opt/trinity/bin/preloadkde
SelectedUsers=user1,user2,user3
ShowUsers=Selected
SortUsers=true
StdFont=Sans Serif,10,-1,5,50,0,0,0,0,0
Theme=@@@ToBeReplacedByDesktopBase@@@
UseBackground=true
UserCompletion=false
UserList=true

[X-:*-Core]
AllowNullPasswd=true
AllowShutdown=All
NoPassEnable=false
NoPassUsers=
ServerArgsLocal=-deferglyphs 16 -nolisten tcp
ServerCmd=/usr/bin/X -br
TerminateServer=false

[X-:*-Greeter]
AllowClose=true
DefaultUser=user1
FocusPasswd=true
LoginMode=DefaultLocal
PreselectUser=None
UseSAK=false

[X-:0-Core]
AutoLoginAgain=false
AutoLoginDelay=0
AutoLoginEnable=false
AutoLoginLocked=false
AutoLoginUser=user1
ClientLogFile=.xsession-errors

[Xdmcp]
Enable=false
Willing=/etc/trinity/tdm/Xwilling

UNQUOTE

BRgds

JB


On Monday 26 August 2019 23:34:17 David C. Rankin wrote:
> On 08/26/2019 08:39 AM, Michele Calgaro via trinity-users wrote:
> > On 2019/08/25 04:56 PM, mb850063@... wrote:
> >> Hello,
> >>
> >> How do I add users in the tdm login interface ? For now, only the main
> >> user shows up, ignoring the other ones who have to write their identity
> >> manually before adding their password.
> >>
> >> Cannot find that on internet, neither in the tde portal.
> >>
> >> BRgds
> >>
> >> JB
> >
> > TCC -> System Administration -> Login manager -> Users tab. You will need
> > root priviledges to change the settings there. Cheers Michele
>
> If you are still having trouble, here are the settings to check in
> kdmrc/tdmrc. In the [X-*-Greeter] section, make sure the following are set
> as needed:
>
> [X-*-Greeter]
> HiddenUsers=root,spamd
> ShowUsers=NotHidden
> SortUsers=true
> UserList=true
>
> The you can set a default user (if you want your always selected first, or
> the previous user, in that order) in the [X-:*-Greeter] section, e.g.
>
> [X-:*-Greeter]
> DefaultUser=david
> FocusPasswd=true
> LoginMode=DefaultLocal
> PreselectUser=Previous
>
> _Note:_ if you use the tdm kcontrol interface to change the settings, all
> comments (and they are very very good) will be stripped from the config
> file, so you may want to make a copy before using the control panel
> interface to make changes.