ajh-valmer wrote:

> On the computer 3, no tdm is in /etc/init.d/
> # dpkg-reconfigure lightdm
> lightdm is in /etc/init.d/
> and it works fine again, the computer boot on tde desktop.
> 

Happened to me as well when doing fresh install

I had to extract from the tdm package.

I am not sure why.