<div dir="auto"><br><div class="gmail_extra" dir="auto"><br><div class="gmail_quote">On Oct 23, 2017 10:59 AM, "Peter Bennett" <<a href="mailto:pb.mythtv@gmail.com">pb.mythtv@gmail.com</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_4834548985464414785moz-cite-prefix">On 10/23/2017 10:43 AM, Ian Evans
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<div dir="auto">Sorry, it's got nothing to do with the closed
captionings, which I don't use. This is not one large black
block but a randomly located sprinkling of picture breakup
across various areas of the screen. The blocks are quite tiny.</div>
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What is your playback profile? The new (as of January 2017) NBC
channel in Boston gives all sorts of video artifacts with VDPAU
decoding on my video adapters. By switching to standard decoding
everything was fine. I am now using standard decoding with VDPAU
rendering and that solves it.<font color="#888888"><br></font></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto">VDPAU High quality is what I've used for years. Did a clean install of Xubuntu just over a week ago, so part of me wonders if it could be that or the new encoder the station engineer mentioned to me. I'm still leaning towards that as I'm pretty sure I'm just seeing it on this station. </div><div class="gmail_extra" dir="auto"><div class="gmail_quote"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000"><font color="#888888"><br></font></div></blockquote></div></div></div>