Package: x2goserver Version: 4.0.1.15 Severity: normal
In /usr/bin/x2goruncommand , the logic for deciding to launch the "gnome-fallback" session instead of the default instead of "gnome" session is specific to Debian and Ubuntu.
The same is true for "gnome-2d", and "gnome-flashback". (Although there are bugs in gnome-session preventing gnome-flashback from working with X2Go. See X2Go bug #598.)
Rather than adding logic for every other distro, I have prepared a patch that is distro-neutral. It looks for the presence of session files under /usr/share/gnome-session/sessions/ to decide which session to (attempt to) launch. It uses the following priority: gnome-flashback (GNOME 3.8 and later) gnome-fallback (GNOME 3.4 and GNOME 3.6) gnome-2d (GNOME 3.2) gnome (GNOME2, or gnome-shell on GNOME3)
I tested it on openSUSE 12.3 (GNOME 3.6) successfully. Without this patch, GNOME gives a warning dialog saying that it could not launch a regular session and had to resort to a fallback session. With this patch, it does not give that warning (because the fallback session was intentional.)
I also tested Ubuntu 12.04: No regression
-Mike#2