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    <p>Wow, the difference is clear. The activation of vdpau has brought
      me a lot, additionally deactivating Vsync has improved my result
      significantly. Thanks Andrew for this great hint.</p>
    <p>Sam<br>
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    <div class="moz-cite-prefix">On 17.05.19 22:29, Phyllis Smith wrote:<br>
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cite="mid:CAOckJE0VYJwnabS54PJkbM6DHpq6d0ZKBx9dSC260c3dRJpbWA@mail.gmail.com">
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          <div dir="ltr" class="gmail_attr"><b>On Wed, May 15, 2019 at
              4:35 PM Andrew Randrianasulu <<a
                href="mailto:randrianasulu@gmail.com"
                moz-do-not-send="true">randrianasulu@gmail.com</a>>
              wrote:</b><br>
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          <blockquote class="gmail_quote" style="margin:0px 0px 0px
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            rgb(204,204,204);padding-left:1ex"><b>wild guess:</b> </blockquote>
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          <div><span class="gmail_default" style="font-size:small">Not
              so "wild" after all</span><span class="gmail_default"
              style="font-size:small">.  This was an <i>amazing
                discovery</i>/knowledge that Andrew passed along that is
              much appreciated for anyone with an Nvidia card using
              Cinelerra and having low frames/sec.<br>
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            <br>
            Try to enable/disable Vsync in ... driver's control
            application (I assume you use proprietary drivers with
            Nvidia GTX-750ti)<br>
            <br>
          </blockquote>
          <div><span class="gmail_default" style="font-size:small">Thank
              you and I am adding this to the manual in the GPU hardware
              acceleration section for others who have not seen this
              here.  Thank you Andrew!  More wild guesses needed! 
              GoodGuy/Phyllis</span> </div>
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