Comment 5 for bug 1188569

I got the same. I made a different post, bug 1405214, and list some observations here:
https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1405214

Whenever shortcuts stop working, and
unity-settings-daemon
crashes then also. (and it seems notify-osd, too, but I'm not sure)

It seemed first that
unity-tweak-tool --reset

fixed the issue -- but the problem returned (careful, many of your unity custom settings will be lost and you need to reconfigure if you do this!)

I still get the impression that this crash may be related to docking my laptop -- at least I need to suspend and wake several times, otherwise it doesn't happen. Anyone else seeing this behavior?

--> This is super annoying and debilitates my work flow enormously, as I favor shortcuts vs. mouse usage!