title: How to cleanly kill Ubuntu onboard keyboard with keystroke from the onboard keyboard
body: <p>I am trying to close the Ubuntu onscreen keyboard named onboard with a command entered by that keyboard.  What happens is if I type a kill command such as the following using the onscreen keyboard itself. . . </p>
  
  <pre><code> killall onboard
  </code></pre>
  
  <p>and then hit Enter again on the onscreen keyboard, I get continuous Enter hits on the terminal I was on.  It's like I unplugged a physical keyboard and it keeps thinking I'm hitting the key I depressed as it was being unplugged.</p>
  
  <p>I can't find any documentation online for how to do this any better so I thought I would ask here.  I've tried the following sending the following kill signals which all have the same behavior:  1 (SIGHUP), 2 (SIGINT), 9 (SIGKILL), 15 (SIGTERM), and 24 (SIGXCPU).</p>
  
  <p>Any ideas?  I'm hoping I'm missing something obvious. . . </p>