Temporary workaround: install and use gnome 3.10 as described at http://www.webupd8.org/2013/09/how-to-install-gnome-310-in-ubuntu-1310.html . Gnome 3.10 is not very stable too, but at least it allows to switch keyboard layout with ctrl+shift. And it's new GUI (a.k.a client-side-decorations) is cool. maybe you won't need Unity anymore.
Not sure about other Desktop Environments, maybe KDE or XFCE are not affected by this problem too.
Temporary workaround: install and use gnome 3.10 as described at http:// www.webupd8. org/2013/ 09/how- to-install- gnome-310- in-ubuntu- 1310.html . Gnome 3.10 is not very stable too, but at least it allows to switch keyboard layout with ctrl+shift. And it's new GUI (a.k.a client- side-decoration s) is cool. maybe you won't need Unity anymore.
Not sure about other Desktop Environments, maybe KDE or XFCE are not affected by this problem too.