garbage / parts of previous session displayed on login screen after logout or reboot
Submitted by Vincent Lefevre @vinc17
Assigned to Nouveau Project
Description
After rebooting a machine using the lightdm display manager, garbage / parts of the user's previous session are displayed on the login screen, which is an important security problem, as anyone with physical access to the keyboard and screen of the machine can reboot it (no need to have an account for that). See Debian bugs:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700235
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=732854