It seems like lightdm demands -keeptty option. The attached ightdm.conf works for me now in an updated 11.10 machine.
** Attachment added: "Working configuration file" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/893590/+attachment/2633700/+files/lightdm.conf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/893590 Title: Control-C causes LightDM to restart in a Multiseat configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/893590/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs