PS2 progressive – no sync?

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  • September 7, 2017 at 2:09 PM #14987
    crocskin
    Participant

      HI
      I have a problem running a 480p output from my PS2 into the OSSC – and am hoping someone here may be able to help me out?
      PS2 fat model is in RGB output mode – cable is a decent RGB start with sync on luma.
      Displays 480i no problem – cable also works perfectly on PS1 into the OSSC

      When I choose progressive output in street fighter anthology the OSSC immediately displays ‘NO SYNC” and the screen goes black. Is there a setting on the OSSC that needs changing.

      Thanks in advance!

      September 7, 2017 at 7:37 PM #14990
      nmalinoski
      Participant

        In short, on the OSSC, you need to change the format for AV1 to RGsB when using 480p from the PS2.

        From what I’ve read on the Shmups forums (and on Wikipedia), when using RGB, the PS2 switches to RGsB for 480p. Someone can correct me if I’m wrong, but it sounds like luma gets shut off (or becomes non-compliant) during the switch, leaving you without a sync signal on pin 20 as expected, and the OSSC [at least at this time] does not support automatic format detection/switching.

        September 7, 2017 at 11:47 PM #14998
        BuckoA51
        Keymaster

          That assessment is correct, only Ypbpr or RGsB is available when running 480p on the PS2. I suppose this is because composite/s-video doesn’t support resolutions greater than 480i.

          September 8, 2017 at 5:35 PM #15010
          Mikeyy00
          Participant

            I had this exact issue, and even switching over to RGsB I had no sync.

            The only way to do it was to connect my PS2 directly (no switches) via scart, select YPbPr mode on the PS2, and change the input on the OSSC to YPbPr, and it was good (the PS2 outputs RGB and Component over the same pins), so my Scart cable was acting as a component cable really.

            Bob had a video of the Sync over green on his PS2, and I cannot for the life of me get mine to behave the same.

            September 8, 2017 at 6:20 PM #15011
            BuckoA51
            Keymaster

              the PS2 outputs sync on green on the same pins too, no idea why it didn’t work for you, is your PS2 modded?

              September 8, 2017 at 8:31 PM #15014
              Mikeyy00
              Participant

                Nope, stock fat. Using FreeMCBoot.

                September 8, 2017 at 10:17 PM #15015
                nmalinoski
                Participant

                  The only way to do it was to connect my PS2 directly (no switches) via scart, select YPbPr mode on the PS2, and change the input on the OSSC to YPbPr, and it was good (the PS2 outputs RGB and Component over the same pins), so my Scart cable was acting as a component cable really.

                  If your SCART switch does automatic switching, I can believe that RGsB wouldn’t work through it; I’m sure the loss of sync on pin 20 causes it to start scanning. If it’s a manual switch, the only thing I could think is that it, for whatever reason, won’t forward anything if a sync signal is absent.

                  What I don’t understand is how RGsB still doesn’t work when connecting your PS2 directly to your OSSC.

                  September 28, 2017 at 8:53 PM #15511
                  Deleted User
                  Participant

                    I am finding this changes game to game for some reason. For example Shadow of Collusus I can keep the PS2 on RGsB and set the game to progressive scan. However with the Getaway I get no sync unless i change the PS2 and OSSC to YPbPr. Not sure why it differs depending on game and and it’s not a hassle changing the settings but just wanted to offer what I have found.

                    September 29, 2017 at 9:48 AM #15532
                    BuckoA51
                    Keymaster

                      Make sure you configure for RGB and not Ypbpr in the PlayStation’s dash.

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