Read these two documents:
- Installation & Setup of Plex Media Server on Synology
- Synology FAQ - Questions, Answers, and a few How-To’s
The Plex Media Server version in the Synology Package Center is a year old.
Download the current version from Plex and perform a manual installation.
The above documents explain how to do so.
In Settings → Server_Name → Transcoder:
Uncheck: Enable HDR tone mapping (*)
Uncheck: Disable video stream transcoding
Check: Use hardware acceleration when available
Check: Use hardware-accelerated video encoding
(*) Best left unchecked for now. Not yet supported via hardware acceleration. Requires more than a Celeron CPU to tonemap in software.
Monitor playback via Plex Dashboard → Now Playing. If hardware accelerated transcoding is in use, you’ll see it there.
