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    <div class="moz-cite-prefix">On 2014-03-01, 9:59 AM, Monkey Pet
      wrote:</div>
    <blockquote
cite="mid:CADXZuRz=by88vp2g91QZTCDipUkWFE6kO7jvh__U_=FYDKJG7Q@mail.gmail.com"
      type="cite">
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        <div class="gmail_extra">Gerald, did anything else besides
          mythtv version change like kernel or did you update the
          distribution?
          <div class="gmail_quote">
            <div><br>
            </div>
            <div>I am using an early intel mac mini as the frontend and
              I am on the edge of the performance for doing HD playback.
              &nbsp;My last issue video jitty every 10 secs was solved by
              switching&nbsp;<span
                style="color:rgb(0,0,0);font-family:Verdana,Arial,Helvetica">from
                kernel 3.11.0-15-generic to 3.13.3-lowlatency</span>. &nbsp;I
              also disabled audio upconversion, enabled realtime
              threads, and checked the audio extra buffering. &nbsp;I also
              disabled the window manager and started X using a custom
              .xsession with just launched the frontend.</div>
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            <div>If you suspect performance issues and don't have
              vdpau/vaapi, you may tweak the system until you have
              enough cpu.</div>
            <div>&nbsp;</div>
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    </blockquote>
    Hi,<br>
    <br>
    It possibly started after an update (ubuntu/mythbuntu), but I wasn't
    tracking that closely.<br>
    <br>
    Gerald<br>
    <br>
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