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<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="max-resolution-guests">
<title>Configuring the Maximum Resolution of Guests When Using the Graphical
Frontend</title>
<body>
<p>
When guest systems with the Guest Additions installed are
started using the graphical frontend, the normal Oracle VM VirtualBox
application, they will not be allowed to use screen resolutions
greater than the host's screen size unless the user manually
resizes them by dragging the window, switching to full screen or
seamless mode or sending a video mode hint using
<userinput>VBoxManage</userinput>. This behavior is what most users
will want, but if you have different needs, you can change it by
issuing one of the following commands from the command line:
</p>
<ul>
<li>
<p>
Remove all limits on guest resolutions.
</p>
<pre xml:space="preserve">VBoxManage setextradata global GUI/MaxGuestResolution any</pre>
</li>
<li>
<p>
Manually specify a maximum resolution.
</p>
<pre xml:space="preserve">VBoxManage setextradata global GUI/MaxGuestResolution <varname>width</varname>x<varname>height</varname>
</pre>
</li>
<li>
<p>
Restore the default settings to all guest VMs.
</p>
<pre xml:space="preserve">VBoxManage setextradata global GUI/MaxGuestResolution auto</pre>
</li>
</ul>
</body>
</topic>
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