OSSC and PAL Gamecube sync issue

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  • May 13, 2026 at 6:53 PM #69423
    Munkeh
    Participant

      Just got myself an OSSC 1.8 along with Packapunch Pro Scart Cable from Retrogamingcables.co.uk to go with Dol-001 Gamecube.

      It doesn’t sync at all – cycles through resolutions with no picture on screen the moment I select AV1 and RGBS.

      STUPIDLY I didn’t have a Mini SD Card ready to update the system, so I’m wondering if it might be a firmware issue – or something else?

      I’m trying to get it working on a 2017 LG OLED.

      Any tips would be gratefully received as I’m a bit lost.

       

      May 14, 2026 at 8:26 AM #69428
      marqs
      Participant

        You should first try adjusting Sync options -> Analog sync Vth.

        May 15, 2026 at 5:04 PM #69453
        BuckoA51
        Keymaster

          Is it a PAL Gamecube? Only PAL Gamecubes can output RGB. Even so you’re better off using component as this unlocks the ability to use 480p, which works much better on modern displays.

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