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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Screen tearing with Haswell HD 4600"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=79370#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Screen tearing with Haswell HD 4600"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=79370">bug 79370</a>
              from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
        <pre>The XFCE compositor doesn't prevent screen tearing, and by default all
frontbuffer rendering in X is allowed to tear. If you want tearfree operation,
you have to specify

Section "Device"
  Identifier "Device0"
  Option "TearFree" "true"
EndSection

in your xorg.conf (or snippet under /etc/X11/xorg.conf.d/tearfree.conf).</pre>
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