andre_debian@numericable.fr composed on 2015-06-07 20:59 (UTC+0200):
I like this old method of starting the graphic Desktop, by booting Linux to the the konsole text mode, reaching to the login and password as user : $ startx [entry] that X server cannot be launched.
On some installations of recent years, setuid is required to make startx launch a DE. You could try this as superuser to make startx work again:
chmod 4711 /usr/bin/Xorg
then again try
startx
Which informations do I have to type in my /home/<user>/.xinitrc, to boot directly on TDE ?
Which informations do I have to add in others file ?
Such things may depend on your specific distro. What have you installed TDE into?