title: Xlib: extension "RANDR" missing on display ":21". - Trying to run headless Google Chrome
body: <p>I'm trying to run some Webdriver Maven tests on a headless server via xvfb using Chrome (Firefox also didn't work) but I'm getting this error message:</p>
  
  <pre><code>Xlib:  extension "RANDR" missing on display ":21".
  </code></pre>
  
  <p>What more information should I provide and what could the problem/solution be?</p>