Comment 35 for bug 830348

Yes me too, Ubuntu 15.10 Unity, Toshiba Chromebook 2. I've the below as I thought it was an issue with the screensaver after reading other sites. No luck:

gsettings set org.gnome.desktop.screensaver ubuntu-lock-on-suspend 'true'
sudo sed -i "s/NoDisplay=true/NoDisplay=false/g" /etc/xdg/autostart/*.desktop