Control-C causes LightDM to restart in a Multiseat configuration
A single computer is setup in a Multiseat setup (2 keyboards, 2 mice, 2 video cards, 2 users). LightDM is configured to allow multiseat so that multiple users can run X sessions simultaneously with -sharevts and -novtswitch options passed to the X server.
On ONE of the seat greeters, pressing the keyboard combination "Control-C" causes ONE of the LightDM greeter sessions to quit and restart the associated X server. On the other seat "Control-C" has no (negative) effect. This happens regardless of whether LightDM is sitting in the login screen or whether the user has logged in to a desktop environment. Pressing "Control-C" in the desktop environment (to copy text for pasting later) causes the LightDM greeter session to quit (as seen in the lightdm log), and then restart the X session.
DistroRelease: Ubuntu 11.10
Package: lightdm 1.0.6-0ubuntu1.1
Uname: Linux 3.0.0-13-generic x86_64
Date: Tue Nov 22 06:49:04 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PATH=(custom, no user)
UpgradeStatus: No upgrade log present (probably fresh install)