title: Selenium Pyvirtualdisplay Hangs on starting
body: <p>I have a selenium test which I am trying to run Headlessly on my ubuntu server. It uses pyvirtualdisplay and xephyr. Though the script is running fine in my local system, it hangs when I run it in the server. I have tried to clear memory and restarting the server. But no luck. The script looks something like this : </p>
  
  <pre><code>from selenium import webdriver
  from pyvirtualdisplay import Display
  
  display = Display(visible=0, size=(1366, 768))
  display.start()
  driver = webdriver.Firefox()
  driver.set_window_size(1366, 768)
  driver.get ("http://www.google.com/")
  </code></pre>
  
  <p>Any help?</p>