Ok, I found the problem : It's the size of my splash screen... (Found here (in french): http://fr.gnomesupport.org/forums/viewtopic.php?pid=1149).
-- Gnome-session crash https://bugs.launchpad.net/bugs/118348 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
