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<A HREF="http://dri.sourceforge.net">http://dri.sourceforge.net</A>
for download and installation instructions.</P>
+<P>A hint from one of our users: the GL video output can be used to get
+ vsynced TV output. You'll have to set an environment variable: (at least
+ on nVidia)</P>
+
+<OL>
+ <LI>export $__GL_SYNC_TO_VBLANK=1</LI>
+</OL>
+
<H4><A NAME="aalib">2.3.1.2.9 AAlib - text mode displaying</A></H4>