I had the same problem with sbackup 0.11.4 on Lubuntu, installed as Ubuntu 12.10 with lubuntu-core package installed. Scheduled backups work though. I tried instead:
sudo /usr/share/sbackup/sbackup-launch
and that seems to work. I checked and I don't have 'gnome-session' or 'x-session-manager' running. Instead, I have 'lxsession'.
I had the same problem with sbackup 0.11.4 on Lubuntu, installed as Ubuntu 12.10 with lubuntu-core package installed. Scheduled backups work though. I tried instead:
sudo /usr/share/ sbackup/ sbackup- launch
and that seems to work. I checked and I don't have 'gnome-session' or 'x-session-manager' running. Instead, I have 'lxsession'.