Subtitles and Dolby Vision are not playing on LG WebOS TV

[Asazen 8]

I have 2 problems. I usually play BDMV but I've been trying for a few weeks with MKV files and to my surprise I've encountered 2 problems on LG WebOS TV.

- The first is that it doesn't play subtitles even though I have them checked (I'm referring to internal mkv subtitles in .srt format, plain text. I didn't test if the PGS plays them.) On the PC the subtitles work correctly.

- The second is that although my TV is Dolby Vision emby plays it in HDR, at the time of preproduction the TV shows a sign if it's Dolby Vision or HDR and always jumps to HDR.

 

Edited December 15, 2024 by Asazen

[SamES 1056]

DV on LG only works in MP4.

Can you make sure that you have all these user options enabled,

and that this setting is enabled in Transcoding settings on the server

[yocker 1247]

43 minutes ago, SamES said:

DV on LG only works in MP4.

Can you make sure that you have all these user options enabled,

and that this setting is enabled in Transcoding settings on the server

From my experience "Allow changing of container formats" does not work to get Dolby Vision working on LG TVs.

[SamES 1056]

No, you need to manually change the container for DV, but if you disable any of those options it might impact the subtitle extraction process

[Asazen 8]

Regarding DV, you told me that LG only plays DV in MP4, is there no way for Emby to force it to play?

And regarding the subtitles, it is clear that it is an error in the APP because on PC, FireTV, Android TV, mobile the subtitles work fine.

[SamES 1056]

2 hours ago, Asazen said:

Regarding DV, you told me that LG only plays DV in MP4, is there no way for Emby to force it to play?

No, not at present.  We would need to know whether the TV supports DV or not, and for that we are limited by the webOS api's and how well this is supported by LG.  There are also some other complications, but it might be possible in the future.

2 hours ago, Asazen said:

And regarding the subtitles, it is clear that it is an error in the APP because on PC, FireTV, Android TV, mobile the subtitles work fine.

It's possible, but those devices might be able to support playback without subtitle extraction, but for the LG it might be required.  If you have those settings disabled, then enabling them to confirm if that is the issue is the first step.

Aside from that, we would need more information to understand this issue more fully.

 

[Asazen 8]

On 12/15/2024 at 9:00 PM, SamES said:

DV on LG only works in MP4.

Can you make sure that you have all these user options enabled,

and that this setting is enabled in Transcoding settings on the server

 

 

 

I had all those options activated by default so that is not the problem.

[Asazen 8]

A new version has just been released and I still can't play subtitles, unbelievable... 

[Neminem 1516]

you need to supply logs.

 

[Luke 42077]

1 hour ago, Asazen said:

A new version has just been released and I still can't play subtitles, unbelievable... 

 

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks!

 

[SamES 1056]

In the server settings, in the Transcoding section, do you have this enabled?

[Asazen 8]

5 hours ago, SamES said:

In the server settings, in the Transcoding section, do you have this enabled?

 

 

Yes, it is enabled, and the server was reinstalled from scratch just 1 week ago so there is no error in it. Tomorrow I will upload the logs after playing them in the LG app.

[HombreCojin 1]

Hi, did you manage to solve the problem? The same thing happens to me on LG and Samsung, and I have all the options above checked.

[Asazen 8]

22 minutes ago, HombreCojin said:

Hi, did you manage to solve the problem? The same thing happens to me on LG and Samsung, and I have all the options above checked.

No, I gave up. I decided to use the Android version on a TV box (NVIDIA SHIELD) and everything works perfectly.

Edited March 12, 2025 by Asazen

[HombreCojin 1]

embyserver.txtI attach the log, I have tried to reproduce "Quien es anna?" on my LG OLED42C45LA.DEUQLJP in case it can help you.

[SamES 1056]

3 hours ago, HombreCojin said:

embyserver.txtI attach the log, I have tried to reproduce "Quien es anna?" on my LG OLED42C45LA.DEUQLJP in case it can help you.

After you start playback, how long do you wait?  For the first time extraction might take a minute or two.  Were there any ffmpeg logs generated at the same time?

[fabien_m2002 5]

Hello

same issue on my LG G2 (WebOS 25), subtitles does not appear on some movies. 
For some movies, there is a long delay (1 or 2 minutes) before sub appears.

I have testes same movies with Emby on Chrome, no issue.

[Luke 42077]

On 12/12/2025 at 2:38 AM, fabien_m2002 said:

Hello

same issue on my LG G2 (WebOS 25), subtitles does not appear on some movies. 
For some movies, there is a long delay (1 or 2 minutes) before sub appears.

I have testes same movies with Emby on Chrome, no issue.

Hi, this can happen if the extraction takes a long time in your environment. We are working on a new way to stream them in little by little so that it doesn’t have to wait for the full extraction.