Screen tear?

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  • #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.

    #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.

    #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.

    #24823
    Nalatroz
    Participant

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

    #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.

    #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.

    #24849
    xNinja83x
    Participant

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

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