Xvfb is a virtual frame buffer that is installed
on giga<b>source</b> so that the <code>bldmastr</code>
user can run tests that use the X11 system.

<ul>
<li> Download Xvfb for Solaris from
<a href="http://chartworks.com/support/server/XvfbonUnix.html"><code>http://chartworks.com/support/server/XvfbonUnix.html</code></a>
<li> Grab the <code>install.xvfb</code> and
<code>xvfb.server</code> scripts from
<a href="http://developers.sun.com/solaris/articles/solaris_graphics.html"><code>http://developers.sun.com/solaris/articles/solaris_graphics.html</code></a>
<li>Edit <code>xvfb.server</code>.
I needed to set X_OPTIONS to:
<pre>
X_OPTIONS="-screen 0 1280x1024x32 -pixdepths 8 24 -fbdir /tmp -co $XVFB_DIR/rgb -fp $XVFB_DIR/fonts/misc/,$XVFB_DIR/fonts/Speedo/,$XVFB_DIR/fonts/Type1/,$XVFB_DIR/fonts/75dpi/,$XVFB_DIR/fonts/100dpi/ -sp $XVFB_DIR/SecurityPolicy"
</pre>
<li>Run <code>install.xvfb</code>
<li> To test:
<BLOCKQUOTE>
Testing and Troubleshooting

Once the X server is running, you can use your servlet application to confirm that Java platform graphics are working. If you have trouble, check that the X server is operating properly. As the user running the X display (tomcat by default) follow these steps, matching the value of -display to match your server:

<pre>
% /usr/openwin/bin/xclock -display :2 &amp;
</pre>


You can use xwd (X window dump) to capture the image. Under the Solaris 9 OE, I

 find that /usr/openwin/bin/xwd crashes (see Sun bug id 4766571), so I use a copy I've obtained from the X11 distribution that I've placed in /usr/X11R6/bin:

<pre>
% /usr/X11R6/bin/xwd -display :2 -root -out /tmp/xclock.xwd
</pre>


Then copy the image file over to another system and display it to check that graphics are working, using xwud:

<pre>
% /usr/openwin/bin/xwud -in /tmp/xclock.xwdY
</pre>


If xclock won't run, then the server is probably not running. Make sure that xsun.server or xvfb.server is properly configured.
</BLOCKQUOTE>

</ol>

See also 
<a href="http://chess.eecs.berkeley.edu/ptolemy/java/headless.htm">Ptolemy   
Java Headless Page</a>