Kryspy,
no i don't care.
first of all i use gentoo for this, not ubuntu. i hope this is no problem.
The light-weight windowmanager i use is called openbox and can be found here:
http://icculus.org/openbox/
in order to get a black background i changed
BG to "#000000" in
$HOME/.config/openbox/autostart.sh
( you could also change this in /etc/xdg/openbox/autostart.sh)
The tiny loginmanager "slim" can be found here:
http://slim.berlios.de
I use version 1.3.1
You can set autologin for a user in the configfile /etc/slim.conf
To launch applications from within xbmc i use Leo2's great Launcher plugin
which you can find here:
http://code.google.com/p/xbmc-launcher/
as I had some issues with launching many applications in fullscreenmode,
as xbmc doesn't free input controls, and the app therefore launches
windowed (at least i think that this is related)
i also installed "devilspie-0.22"
(
http://www.burtonini.com/blog/computers/devilspie).
how i set this up to work is explained here:
http://forum.xbmc.org/showpost.php?p=242...tcount=165
openbox can be internally (means without using devilspie) configured
to launch every single (or just some selected) in fullscreen and
without window-decorations, but this doesn't work for apps launched in xbmc
(or at least i haven't found out how).