How to fix Plex pixel problem on DSM7 – changing video codec h265

Got to Synology Settings/ Terminal/ Enable SSH

Open Terminal on MAC (PuTTy on Windows)


Switch to Root mode


Connect to your Synology NAS

Open Plex server folder


Open Preferences.xml file


Use combination SHIFT + $ in order to jump to the end of the file. Arrow down to go down.

Press letter I on the keyboard to enable file editing mode.

At the end of the file add


Press the ESCAPE button on a keyboard to stop editing

Press SHIFT + Z + Z to save the file

Type REBOOT and hit enter to restart the NAS server.



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