title: KeyBoard stop working on RubyMine IDE
body: <p>KeyBoard stop working on RubyMine IDE, but still can select and navigate with Mouse. It's a frequent problem. My system configuration as following:</p>
  
  <p><strong>RubyMine  7.1.4 running on Ubuntu 14.04 and Open JDK Java 7.</strong></p>
  
  <p>How to get ride of this issues?</p>