Stuttering Out of Sync Playback on distinct channels from MythTV/SiliconDust

I am running several RPIs with OSMC 11.1/Kodi 18.9 as front ends for Mythtv 30 and utilizing multiple HDHomeRun tuners. I receive about 35 channels (mix of HD and SD), and all except four (actually one channel with four sub-channels) come in great.

The four channels that give me trouble are low definition and low power, but I get good solid signals at the tuners. These channels lose the synchronization between audio and video, the content stops and goes, sometimes pixelated in fits and starts. They are unwatchable and the longer I try to watch them, the worse it gets.

When I play the same channels/recordings through the Mythtv front end (or video players like VLC, etc.) they play perfectly so I’m thinking the problem is somewhere in the Kodi/OSMC end of the equation. This behavior is the same for live tv and recorded programs on the four channels but no other channels display this problem. If I resample/transcode the programming from these four channels (most simply by just “resampling” the recording over the top of itself) they play as expected and the quality is quite nice, but I obviously can’t do that with live TV. In the past, although I’m not exactly sure how far back, (maybe 1 or 2 versions of OSMC back) there was no problem playing these channels.

What suggestions can be shared to track down why these particular channels are not playing correctly in Kodi? I’ve been all over the setting in Kodi and tried adding filters, etc. in Mythtv but nothing works satisfactorily.

To get a better understanding of the problem you are experiencing we need more information from you. The best way to get this information is for you to upload logs that demonstrate your problem. You can learn more about how to submit a useful support request here.

Depending on the used skin you have to set the settings-level to standard or higher, in summary:

  • enable debug logging at settings->system->logging

  • reboot the OSMC device twice(!)

  • reproduce the issue

  • upload the log set (all configs and logs!) either using the Log Uploader method within the My OSMC menu in the GUI or the ssh method invoking command grab-logs -A

  • publish the provided URL from the log set upload, here

Thanks for your understanding. We hope that we can help you get up and running again shortly.

OSMC skin screenshot: