[SID] Base Xsession file lost? And gdm error messages

[Sylvain Vedrenne <sylvain.vedrenne@free.fr>]

Hello,

I've got various problems with gdm since I upgraded my SID 2 days ago.

Thanks to some of you I found out how to put Window Maker, Gnome, Xfce and KDE 
back into the drop-down list of gdm, 

BUT gdm still doesn't work correctly

(before finding about the new SomeWM.desktop files, I messed around for hours 
trying to fix the problem myself... mea culpa).


- When I select any session (Window Maker, etc.), gdm complains about not 
finding 'the base Xsession' script... though I have one in /etc/dm/Sessions/ 
and in other directories as well.

- Less disturbing: gdm also complains about 'XDMC' server not configured or 
something.

=> Do you know where the 'base' Xsession script is supposed to be?
And maybe how to generate a default Xsession?

Cheers,
Sylvain.