I changed the keybinding to Show the activities overview in the panel System Settings / Keyboard / Shortcuts to Shift-ESC, but the left-meta or left-windows key is still bringing it up.How do I disable that binding?
How do I disable the left-(meta|windows) key binding in gnome-shell
keyboard shortcuts;gnome3;gnome shell
 gconftool -s /apps/mutter/general/overlay_key -t string Super_Rworked (after shell restart) for me. Instead of Super_R feel free to put name of any key which doesn't exist on your keyboard.