@Stéphane: in fact, it's not really the cause :) The cause is that it tries to launch /usr/share/gnome-session/session/gnome.session by default, which is correct, but this one try to get acceleration and doesn't fallback because of a key change.
So, what I'll do for now: - change the default to ubuntu - fix the gnome.session file to the new syntax Not sure that the ubuntu session will works for you as it's testing for acceleration, so it will probably fallback -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in ubuntu. https://bugs.launchpad.net/bugs/707232 Title: Netbook image - no valid session found -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs