Screen tear?

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  • January 15, 2019 at 11:48 PM #24820
    xNinja83x
    Participant

      I have what seems like a screen tear happening every few seconds or so when in motion using my OSSC with my RGB modded NES and Model 1 SNES. I have tried the 3 TV’s I own. A Samsung Q8FN, A Samsung NU7100, And a old Sony Trinitron HD CRT. All do it though it is the most noticeable on the Trinitron. I have tried the Snes without the OSSC on the Trinitron using composite and had no tearing. There must be a setting on the OSSC that I need to adjust to fix it but I don’t know enough about the settings and don’t think it would be good to change settings that I don’t know what they do. Does anyone know what I should do? I updated the firmware kind of hoping it would fix it but it remains unchanged.

      January 16, 2019 at 12:20 AM #24821
      nmalinoski
      Participant

        Someone more knowledgeable may have a better answer, but I would think the problem is caused by each of your displays performing framerate conversion on the 60.08Hz framerate output by both the NES and SNES. It’s also not uncommon for displays to have entirely different processing pipelines and circuitry between digital and analogue inputs, which I think would explain the discrepancy you’re experiencing on the HD CRT.

        January 16, 2019 at 12:32 AM #24822
        xNinja83x
        Participant

          I see that is unfortunate lol. It is definitely one of those things that once notice drives you crazy. I think you are probably right though. I do have one last test I can do to put your theory to test. I can run my Nes/Snes through the ossc and into my hdmi to component converter box and then try outputting from the system to my shinybow scart to component converter and see if it gets tearing in both of those or only one of those situations. I will report back, and thank you.

          January 16, 2019 at 12:33 AM #24823
          Nalatroz
          Participant

            Does it happen if you connect the OSSC to a monitor?

            January 16, 2019 at 1:04 AM #24826
            xNinja83x
            Participant

              Good idea, I will try that next, probably tomorrow though. ok, so I just did my test and with the ossc going into the hdmi to component converter i get tearing. With just the consoles hooked to the shinybow then to the component connection of the tv I got none, zi played a few worlds of mario 1 and through the first palace of zelda 2. I used the same games for both tests. I’m afraid i hit a setting that i shouldn’t have, I can’t be sure but i really don’t think it was doing this before.I can try to capture an image of it if it will help.

              January 16, 2019 at 9:31 PM #24848
              xNinja83x
              Participant

                Ok, I found that if I use line x5 at 1900×1200 I get no tearing, If I use line x5 at 1920 x1080 I do. Line x2 and x3 do also. For now I am going to use x5 1920×1200. The only issues I have with that setting is that my tv won’t let me adjust the picture to fit so I end up with an inch or so of unused space above and below the picture. And the other issue is that the sound cuts out but I noticed by restarting the ossc the sound seems to work fine. The only tv I tested this on was the Q9FN.

                January 16, 2019 at 9:32 PM #24849
                xNinja83x
                Participant

                  Btw finally got to try out reverse lpf and my god my model 1 snes looks good.

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