Finally did some debugging. I've tried removing xserver-gl (which removed /etc/X11/Xsession.d/98xserver-xgl_start-server) - no change. I've tried commenting out gpg-agent (no change).
My .xsession-errors: (process:17990): Gtk-WARNING **: This process is currently running setuid or setgid. This is not a supported use of GTK+. You must create a helper program instead. For further details, see: http://www.gtk.org/setuid.html Refusing to initialize GTK+. (process:17994): Gtk-WARNING **: This process is currently running setuid or setgid. This is not a supported use of GTK+. You must create a helper program instead. For further details, see: http://www.gtk.org/setuid.html Refusing to initialize GTK+. /etc/gdm/Xsession: Beginning session setup... And the all inportant strace I'll attach :-) (strace -e trace=process -f -p (2nd gdm process)) The exec's are both referring to "/usr/bin/gdmflexiserver" which isn't itself setuid 17982 execve("/usr/bin/gnome-keyring-daemon", ["/usr/bin/gnome-keyring-daemon", "-d"], [/* 51 vars */]) = 0 17984 clone(child_stack=0xb7b494c4, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0xb7b49bd8, {entry_number:6, base_addr:0xb7b49b90, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}, child_tidptr=0xb7b49bd8) = 17986 17988 execve("/etc/gdm/PreSession/Default", ["/etc/gdm/PreSession/Default"], [/* 59 vars */]) = 0 17990 execve("/usr/bin/gdmflexiserver", ["gdmflexiserver", "--command=GET_CONFIG greeter/Gra"...], [/* 59 vars */]) = 0 17993 execve("/bin/sed", ["sed", "s/^\\([^ ]*\\) .*$/\\1/"], [/* 59 vars */]) = 0 17994 execve("/usr/bin/gdmflexiserver", ["gdmflexiserver", "--command=GET_CONFIG greeter/Bac"...], [/* 59 vars */]) = 0 17995 execve("/usr/bin/xsetroot", ["/usr/bin/xsetroot", "-cursor_name", "left_ptr", "-solid", "#dab082"], [/* 59 vars */]) = 0 17987 execve("/etc/gdm/Xsession", ["/etc/gdm/Xsession", "/usr/bin/gnome-session"], [/* 19 vars */]) = 0 ** Attachment added: "strace (17990 and 17994 complained about)" http://launchpadlibrarian.net/9207452/strace -- Can't log in after upgrading https://bugs.launchpad.net/bugs/136529 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