Not sure if it's something I did but couple of days ago, after a reboot, any sort of input completely stopped working in Gnome. Keyboard, touchpad clicks, USB mouse clicks, etc. The cursor still moves, however and the keyboard also starts responding sometimes after a very long wait.
Tried purging and re-installing a lot of packages, but in vain. Then it hit me to try Unity (7) and voila, everything works perfectly here. I waited for a couple of days to see if the devs would release some patch but no, input in Gnome is still frozen.
So, any help please? I'd really like to resolve this without installing the system all over again