I Use 64-bit ubuntu Gnome 13.10. Currently I have 2 input languages: English and Russian. When I wanted to switch between them I use standard Alt-Shift shortcut. When the Russian is selected Alt-Shift works fine, but the switchback is impossible. When I use GUI for switching it works fine:
I want to make switching in both directions possible using not only GUI but keyboard shortcuts too. How can I fix this?