Problem Playing mkv files

Since the Vero 4K last updated I have a problem playing mkv files. The files will pllay but I loose all control of the Vero 4K.

Pressing stop, pause etc. no longer work. Pressing the power button doesn’t work. Nothing works once the mkv file starts to play.

I have no choice but to leave the mkv file playing until it finishes.

I am a total loss to know why this happens. The mkv files are on a TrueNAS core box and all TS files play without issue.

What is going on?

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:

I am happy to paste logs when/if I need to but before that I was hoping someone else could see if they can play mkv files and get the same issue? It is always frustrating when the first thing anyone does is ask for logs. I am partially sighted so even just reading the screen is hard for me.

100% of my .mkv files work (including 1080p, 4k & hdr).

MKV playing fine from Synology NAS NFS shares.

Are you guys running the latest update on the Vero 4K?

Another thing I noticed after the latest update is that OSMC is showing my TV as 720p when it is actually 1080i and it won’t let me change that. It always used to.

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MKV is a container format, so it doesn’t actually mean anything if people can play “mkv”, it is more crucial what formats are used inside. You can use mediainfo to check that.

But just upload debug enabled logs they will tell whats going on.

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What remote controller are you using?


Hi Sam,

I’m using an infared remote but I don’t think that is the issue unless you know otherwise. The remote works fine with everything else. But when I play an MKV file nothing works any more. The file plays but I loose all control including trying to power the Vero off. Playing the same file on my PC works fine.

I haven’t yet done anything people have suggested as I have food poisoning and not feeling great at the moment.

You don’t use cec and earc do you? Just a thought as my lg remote stops working after a while when using earc. Could explain the remote not working.

No, my TV is old. I like your forum name.

I do sympathise, truly, but debug-enabled logs are by far the best way for the OSMC guys to see what is going on internally during your playback process - most problems need debug logs to diagnose.

I’m certainly not having any problems playing MKV files, but I would be surprised if I were - it’s such a common format that if MKV playback wasn’t working, nearly every single person who owns an OSMC device would be on here complaining about it. And, as fzinken says, MKV is a container format rather than a data format - so two MKV files can encode wildly different audio and video codecs, resolutions, etc. If some files are playing and not others, it’s probably not the container format that’s the problem.

If you possibly can post a link to some debug logs, you will make it a lot easier for the OSMC guys to help you. :slightly_smiling_face:

I certainly am.

I don’t think 1080i output is supported any more… I’m also not seeing an option to switch to it. I’m not sure when that option disappeared; Sam can probably tell us.

The video format is 1920*1080 (16.9) 60fps, VP9 with audio format AAC LC

I’ve never heard of VP9 before.

As I said before it plays but I can’t stop it. pause it or fast forward. As I can play TS files it just annoying not being able to contol these files but it is not the end of the world.

I tried playing an MP4 file and it was fine.

Can I post the logs from my PC? As I said before I’m partially sighted so doing anything from the TV is a nightmare for me.

That’s a pain. All my TV’s are 1080i

It’s a video codec. It’s the one that YouTube, for example, uses.

You could login via SSH from your PC. To enable debug logging you would need to

nano .kodi/userdata/advancedsettings.xml

And add a section as below


After that play the movie and upload logs with grab-logs -A and share the URL.

There’s a known issue where IR performance is not responsive during video playback after the introduction of the 4.9 kernel.

We’re aware of it and we are investigating. It’s likely IRQ related.



I don’t know if this helps you work out what is going on but my remote works fine when playing streaming services like the BBC iPlayer. No problems at all. But if I play a video stored on my TrueNAS server the remote is all over the place. I have no idea why. Playing the same file on Kodi on my PC works fine so it is not a TrueNAS issue.