<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="legacy-fullscreen-mode">
  <title>Requesting Legacy Full-Screen Mode</title>
  
  <body>
    <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> uses special window manager facilities to switch a
      multiscreen machine to full-screen on a multimonitor host system. However, not all window managers provide these
      facilities correctly. <ph conkeyref="vbox-conkeyref-phrases/product-name"/> can be configured to use a legacy
      method of switching to full-screen mode instead, by using the command: </p>
    <pre xml:space="preserve">VBoxManage setextradata global GUI/Fullscreen/LegacyMode true</pre>
    <p>You can go back to the default method by using the following command: </p>
    <pre xml:space="preserve">VBoxManage setextradata global GUI/Fullscreen/LegacyMode</pre>
    <p>This is a global setting. </p>
  </body>
  
</topic>
