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            <b><a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED --- - [sna gen4] flickering rendering"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=55500#c36">Comment # 36</a>
              on <a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED --- - [sna gen4] flickering rendering"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=55500">bug 55500</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>Zdenek, can you see if this reduces the majority of your flicker:

commit 2dbe7d91a7f15a3a9ddad696c5088ca98898fca2
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date:   Wed Dec 12 09:50:34 2012 +0000

    sna/gen4: Use the single-threaded SF w/a for spans as well

    Fixes the flickering seen in the fishtank demo, for example.</pre>
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