So basically you need the premium version if you wish to transcode in HDR(especially so when you wish to burn in subtitle), but for the past few weeks this has been driving me nuts as I am not transcoding the video yet SRT subtitle won’t work. Turning on Subtitle will automatically disable HDR even when transcoding is off.
I after playing around with the TV settings as well, I finally realized that:
- Newer LG TV does not support DTS bitstreaming / ARC
- If your source is transcoding Audio, Plex will “force” the Video to transcode as well when you turn on subtitle.
- Which means you are now transcoding video on the free version of plex so it default back to non HDR mode.
Update (2023-09-19): Finally decided to buy a lifetime license for Plex.