Caps lock indicator not synced
This is a confirmed bug and there is nothing that you can do for the moment to fix it (I have the same issue):
- https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/830063
- http://marc.info/?l=linux-input&m=135047785511198&w=2
- https://bugs.freedesktop.org/show_bug.cgi?id=21266
Also, setleds it's working only in console mode (one among tty1-tty6), but this will not solve the problem. Check man setleds to see what it's purpose is (there is also one example there).
Press Ctrl+Alt+F5 or F6 to change current tty
Then login in a new tty and use it
setleds -caps