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<blockquote data-quote="mm1352000" data-source="post: 1108986" data-attributes="member: 82144">Hello again RuudThanks for reporting your findings. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />Did you try timeshifting/recording to the internal drive and disconnecting the external USB HDD? ...and what about also disconnecting the keyboard receiver?Have you considered drivers and power saving mode as possible problems?In the past people have encountered issues with badly written/designed drivers that caused discontinuities because their ISR took too long. USB device, USB controller, and network adapter drivers seem to be particularly susceptible to this problem. There is a DPC latency analysis tool that can be used to check this:<a href="http://www.thesycon.de/deu/latency_check.shtml" target="_blank">http://www.thesycon.de/deu/latency_check.shtml</a>It would be interesting to see the results from such a tool...And about the power: I wonder if the USB controller reduces the bandwidth to save power, and whether such power saving could be disabled. Of course there is no way to change the link speed between the tuners and the controller because the tuners themselves are USB 2.0. But the link between the controller and the PCH could be affected by this too.Regards,mm</blockquote>

[QUOTE="mm1352000, post: 1108986, member: 82144"] Hello again Ruud Thanks for reporting your findings. :) Did you try timeshifting/recording to the internal drive and disconnecting the external USB HDD? ...and what about also disconnecting the keyboard receiver? Have you considered drivers and power saving mode as possible problems? In the past people have encountered issues with badly written/designed drivers that caused discontinuities because their ISR took too long. USB device, USB controller, and network adapter drivers seem to be particularly susceptible to this problem. There is a DPC latency analysis tool that can be used to check this: [url]http://www.thesycon.de/deu/latency_check.shtml[/url] It would be interesting to see the results from such a tool... And about the power: I wonder if the USB controller reduces the bandwidth to save power, and whether such power saving could be disabled. Of course there is no way to change the link speed between the tuners and the controller because the tuners themselves are USB 2.0. But the link between the controller and the PCH could be affected by this too. Regards, mm [/QUOTE]

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