Rock64 no sdtv output

Creating a bug report/issue

x I have searched the existing open and closed issues

Required Information

  • DietPi version | it happens on both bookworm and bullseye fresh installs
  • Distro version | bookworm or bullseye fresh install
  • Architecture | rockchip 3328
  • SBC model | pine64 rock64
  • Power supply used | (5v 3a)
  • SD card used | (sandisk ultra)

Additional Information (if applicable)

  • Software title | (EG: Nextcloud)
  • Was the software title installed freshly or updated/migrated y ?
  • Can this issue be replicated on a fresh installation of DietPi y ?
    not really a ‘‘bug’’

Steps to reproduce

  1. start up dietpi
    2.open dietpi-conf
  2. try to change video settings, says cannot change resolution on rock 64.

Expected behaviour

  • I would like to enable sdtv ntsc 240p for scanlines on retropie, cant get any form of output to my crt

Actual behaviour

  • it wont let me change any display settings

Extra details

  • I tried only plugging in my 3.5 rca adapter, no image on my crt. It outputs fine on my hdtv, and the board can output through the adapter, it works on a different software.