\fBtdm\fP is the Trinity display manager also known as login manager. It shows a graphical login screen for username and password. After authenticating the user it starts a session.
\fBtdm\fP can be configured for remote login via XDMCP. XDMCP is the "X Display Manager Control Protocol" which is used to set up connections between remote systems over the network.
\fBtdm\fP is a derivative of \fBxdm\fP. \fBman 1 xdm\fP may provide useful information (requires installed \fBxdm\fP). For X-related problems try \fBman 7x X\fP and \fBman 1 startx\fP.
This manual page was written by Holger Hartmann <Holger_Hartmann@gmx.de> for the Debian Project, but may be used by others. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 or any later version published by the Free Software Foundation.
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On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common\-licenses/GPL.