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I have been lurking in the archive but this is my first posting to this forum so please forgive if it goes astray!</div>
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I was interested in your symptoms of zero byte recordings. <br>
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I have been chasing this (or a similar) problem for months, and am in active dialogue with a developer.</div>
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I'm running xubuntu 22.04, mythtv v32 with quad HDHR, DVBT/T2 in the UK.</div>
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Symptom: Zero byte failed recording; log shows it takes too long to acquire a tuning lock.</div>
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Rarely, it will 'lock up' the tuner until the HDHR is rebooted or power cycled.</div>
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I can reproduce the fault readily and have eliminated power supply, LAN connection, simultaneous recordings, EIT tuning, antenna overloading and disk spin up times.</div>
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I can reproduce it if I alternate recordings from mplex 5 and 1. I can do this very readily with a perl script using API which swamps the backend with short recordings.<br>
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Interestingly, mpx5 has a 167KHz offset, but Mpx 1 is the one which fails.</div>
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The story is here:<br>
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<a href="https://forum.mythtv.org/viewtopic.php?f=36&t=5130&sid=77389d8c7f146eb35b326eb655eecbf1">https://forum.mythtv.org/viewtopic.php?f=36&t=5130&sid=77389d8c7f146eb35b326eb655eecbf1</a></div>
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Please join in over on the forum or shout if you'd like a copy of the code to generate lots of recordings.</div>
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Phil</div>
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