T’as raison gaston, j’avais tellement la tête comme un compteur à gaz que j’ai confondu gdm et gnome. Bon, en tous cas,
# aptitude show gdm3
Paquet : gdm3
État: installé
Automatiquement installé: non
Version : 2.30.5-6squeeze3
Priorité : optionnel
Section : gnome
Responsable : Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>
Taille décompressée : 6 963 k
Dépend: libart-2.0-2 (>= 2.3.18), libatk1.0-0 (>= 1.29.3), libattr1 (>= 2.4.41-1), libaudit0, libbonobo2-0 (>= 2.15.0), libbonoboui2-0 (>= 2.15.1), libc6 (>=
2.3.6-6~), libcairo2 (>= 1.2.4), libcanberra-gtk0 (>= 0.4), libcanberra0 (>= 0.2), libdbus-1-3 (>= 1.0.2), libdbus-glib-1-2 (>= 0.88),
libfontconfig1 (>= 2.8.0), libfreetype6 (>= 2.2.1), libgconf2-4 (>= 2.27.0), libglib2.0-0 (>= 2.24.0), libgnome2-0 (>= 2.17.3), libgnomecanvas2-0
(>= 2.11.1), libgtk2.0-0 (>= 2.16.0), liborbit2 (>= 1:2.14.10), libpam0g (>= 0.99.7.1), libpanel-applet2-0 (>= 2.28.0), libpango1.0-0 (>= 1.14.0),
libpolkit-gobject-1-0 (>= 0.94), libpolkit-gtk-1-0 (>= 0.94), libpopt0 (>= 1.16), libselinux1 (>= 1.32), libupower-glib1 (>= 0.9.0), libwrap0 (>=
7.6-4~), libx11-6, libxau6, libxdmcp6, libxklavier16 (>= 5.0), libxml2 (>= 2.6.27), zlib1g (>= 1:1.1.4), debconf (>= 0.5) | debconf-2.0, gconf2 (>=
2.28.1-2), adduser, libpam-modules (>= 0.72-1), libpam-runtime (>= 0.76-13.1), gnome-session-bin (>= 2.30), policykit-1-gnome, upower, gnome-session
| x-session-manager | x-window-manager | x-terminal-emulator, lsb-base (>= 3.2-14), librsvg2-common
Recommande: zenity, xserver-xephyr | xnest, x11-xkb-utils, xserver-xorg, at-spi, gnome-power-manager (>= 2.28), gnome-settings-daemon, gnome-icon-theme,
desktop-base (>= 6)
Suggère: libpam-gnome-keyring, metacity, gnome-mag, gnome-orca, gok
Est en conflit: fast-user-switch-applet, gdm
Casse: gnome-orca (< 2.30.0-2), gnome-panel (< 2.26), gnome-screensaver (< 2.17.7), gnome-session (< 2.26)
Remplace: fast-user-switch-applet
Fournit: fast-user-switch-applet, x-display-manager
Description : Next generation GNOME Display Manager
GDM provides the equivalent of a "login:" prompt for X displays: it asks for a login and starts X sessions.
It provides all the functionality of XDM, including XDMCP support for managing remote displays, and extends it with the ability to start X servers on
demand.
The greeter is written using the GNOME libraries and hence looks like a GNOME application - even to the extent of supporting themes!
This package contains the next generation GDM, which was developed using the technologies on which GNOME 3 is based.
Tout va bien. Si d’autres rencontrent le même problème je conseille de tenter l’installation de nvidia-glx avant d’aller gratter dans le pinning.
A+