Pycharm with IdeaVim occasionally makes the keyboard unresponsive

Question

Every so often when using PyCharm Community Edition with IdeaVim in Ubuntu 13.10, the keyboard stops accepting input and I have to restart the IDE. The cursor still moves when

Answer 1

Either upgrade IBus to version 1.5.11 or add export IBUS_ENABLE_SYNC_MODE=1 to your ~/.profile, then restart a session.

https://youtrack.jetbrains.com/issue/IDEA-78860