Comment 2 for bug 905888

Błażej, does typing have no effect anywhere in the user session or just in a specific application?

Also, please open a terminal window, run the following and post the output here:
apt-cache policy onboard
apt-cache policy python-virtkey

Then please quit onboard and restart it like this from the terminal:
onboard -ddebug

type a few letters, close it again and attach the terminal output here.