Hi Strainu,
I have the same MB and and I can't have /dev/dri folder.
Have you this folder ? (I use it for Plex hardware transcoding).
My config :
- ARPL with DSM 7.1 (42962)
- DS918+ with original serial
- 1 mac spoofing
All is OK on another board (J5005) with DSM 7.0 and TCRP loader.