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MediaPortal 1
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Recorder:Pid 7c0 Continuity error... 3 ( prev f ) - bad signal?
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<blockquote data-quote="tachtevrenidis" data-source="post: 1025446" data-attributes="member: 142909"><p>ok LOTS of info. I spent a couple of hours tonight analyzing the latency patterns. When two shows are recording the latency is on average every 10 seconds. I used xperf and latencymon to tie this back to drivers. It all linked back to ndis.sys (part of the network driver). I made sure I had the latest network driver and also went into the BIOS and disabled pretty much everything except for the network, esata and usb. The issue persisted. </p><p> </p><p>Then I started googling. The driver is intel 82579LM and it seemed like there was a lot of chatter relating to this piece of hardware and latency. This post seemed to get it right:</p><p> </p><p><a href="http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Workaround-for-high-DPC-issues-for-X-T-and-W-0-series-Intel-NIC/td-p/611567" target="_blank">http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Workaround-for-high-DPC-issues-for-X-T-and-W-0-series-Intel-NIC/td-p/611567</a></p><p> </p><p>After changing these settings, the problem seems to be fixed. I don't want to jinx it but I have watched a show while recording two others for 10 minutes now without a single hiccup. I will keep monitoring. When I ran latencymon, the worse it ever got was yellow (which is not enough to trigger a discontinuity in tv service). </p><p> </p><p>I want to thank everyone your help. I learned a lot about MePo through this.</p></blockquote><p></p>
[QUOTE="tachtevrenidis, post: 1025446, member: 142909"] ok LOTS of info. I spent a couple of hours tonight analyzing the latency patterns. When two shows are recording the latency is on average every 10 seconds. I used xperf and latencymon to tie this back to drivers. It all linked back to ndis.sys (part of the network driver). I made sure I had the latest network driver and also went into the BIOS and disabled pretty much everything except for the network, esata and usb. The issue persisted. Then I started googling. The driver is intel 82579LM and it seemed like there was a lot of chatter relating to this piece of hardware and latency. This post seemed to get it right: [url]http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Workaround-for-high-DPC-issues-for-X-T-and-W-0-series-Intel-NIC/td-p/611567[/url] After changing these settings, the problem seems to be fixed. I don't want to jinx it but I have watched a show while recording two others for 10 minutes now without a single hiccup. I will keep monitoring. When I ran latencymon, the worse it ever got was yellow (which is not enough to trigger a discontinuity in tv service). I want to thank everyone your help. I learned a lot about MePo through this. [/QUOTE]
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Recorder:Pid 7c0 Continuity error... 3 ( prev f ) - bad signal?
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