This happens to me on a fresh install of 13.10, on a new dell XPS 13. After changing some settings including hiding desktop icons, the problem appeared.
Symptoms were a locking of unity/desktop when the last window covering the desktop was minimized.
Again setting [ gsettings set org.gnome.desktop.background show-desktop-icons true ] corrected the problem.
This happens to me on a fresh install of 13.10, on a new dell XPS 13. After changing some settings including hiding desktop icons, the problem appeared.
Symptoms were a locking of unity/desktop when the last window covering the desktop was minimized.
Again setting [ gsettings set org.gnome. desktop. background show-desktop-icons true ] corrected the problem.