Upgrade to:
gnome-control-center : 3.6.3-0ubuntu45
gnome-settings-daemon : 3.8.5-0ubuntu10
Now Alt+Shift worked. FYI, I've clear the xkb settings before upgrade (as in comment #159). Is it possible to clear old settings during upgrade package? (at least in /etc/default/keyboard)
Upgrade to: center : 3.6.3-0ubuntu45 daemon : 3.8.5-0ubuntu10
gnome-control-
gnome-settings-
Now Alt+Shift worked. FYI, I've clear the xkb settings before upgrade (as in comment #159). Is it possible to clear old settings during upgrade package? (at least in /etc/default/ keyboard)