gnome-session | The GNOME Session Manager - GNOME 2 session | Mehr ...
This package contains a session that can be started from a display manager such as GDM. It will load all necessary applications for a full-featured user session. . The session manager also features the ability to save a running session an restore it later. . This version is configured to start the GNOME 2 desktop, based on the GNOME panel.
gnome-session-bin | The GNOME Session Manager - Minimal runtime | Mehr ...
This package contains the binaries for the GNOME Session Manager, but no startup scripts. It is meant for those willing to start gnome-session by hand with the components of their choice, and for applications such as GDM that use gnome-session internally.
gnome-session-common | Common files for the GNOME session manager | Mehr ...
This package contains common files for the GNOME 2 and GNOME 3 sessions, such as icons, translations and startup scripts.
gnome3-session | The GNOME Session Manager - GNOME 3 session | Mehr ...
This package contains a session that can be started from a display manager such as GDM. It will load all necessary applications for a full-featured user session. . The session manager also features the ability to save a running session an restore it later. . This version is configured to start the GNOME 3 desktop, based on the GNOME shell.