I'm seeing this problem occasionally ever after removing light-locker and light-locker-settings. I'm using gnome-screensaver and xscreensaver is not installed.
I saw these symptoms in 13.10 and was only able to resolve it by upgrading to a development version of lightdm. The issue was with virtual terminal switching I believe. Perhaps some affected users could use gdm in place of lightdm. In my case gdm isn't an option as gdm loads very slowly on my system.
I'm seeing this problem occasionally ever after removing light-locker and light-locker- settings. I'm using gnome-screensaver and xscreensaver is not installed.
I saw these symptoms in 13.10 and was only able to resolve it by upgrading to a development version of lightdm. The issue was with virtual terminal switching I believe. Perhaps some affected users could use gdm in place of lightdm. In my case gdm isn't an option as gdm loads very slowly on my system.