beorn

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  • March 20, 2019 at 9:21 AM in reply to: OSSC + Pentium 233 MMX (VGA) #25638
    beorn
    Participant

      I guess where my confusion comes in is when connecting my PC to my monitor without using the OSSC (the same monitor mentioned here when using the OSSC), I don’t get near the same image fidelity or proper aspect ratio (top and bottom borders). So I thought the OSSC is doing some form of image manipulation, and was then curious how to manipulate that further with 800 or 1024.

      Is there a guide as to exactly what each of these settings do? Wondering if I can “tweak” these further to attempt higher res:

      H. Samplerate :
      H. Synclength :
      H. Backporch :
      H. Active :
      V. Synclength :
      V. Backporch :
      V. Active :

      Thanks.

      March 19, 2019 at 7:50 PM in reply to: OSSC + Pentium 233 MMX (VGA) #25629
      beorn
      Participant

        Hmm I see. Well i’m connecting up a 1080p display to it, so 800×600 or 1024×768 pass-through wouldn’t scale well on it, unless i’ve misunderstood you.

        The settings above for 320×200 put the resulting image in a nice 4:3 box with correct borders on my 1080p display – I guess I was looking for the same effect in 800×600 and 1024×768 or is this not possible?

        March 19, 2019 at 7:11 PM in reply to: OSSC + Pentium 233 MMX (VGA) #25627
        beorn
        Participant

          Hi James-F,

          Thanks for providing the settings to use for 320×200 – works really well for me.

          I think someone asked about 800×600 and 1024×768 output from a PC through the ossc. Is it possible for the OSSC to also display those resolutions? If so, what would the settings need to be? I’m still fairly new to the ossc and what settings to use etc.

          Thanks in advance!

          November 5, 2018 at 11:51 PM in reply to: OSSC Main Menu(?) losing sync #23613
          beorn
          Participant

            No, it doesn’t.

            November 5, 2018 at 10:35 PM in reply to: OSSC Main Menu(?) losing sync #23609
            beorn
            Participant

              It’s possible, but indescernable to me. Mario seems to jump exactly when I tell him to 🙂

              Anyway I’m not going to empty my wallet on every adapter out there. I was just hoping someone might have a more tangible reason.

              November 5, 2018 at 6:55 PM in reply to: OSSC Main Menu(?) losing sync #23602
              beorn
              Participant

                It’s this: https://thepihut.com/products/raspberry-pi-hdmi-to-vga-convertor

                I use that for 2 other CRT’s I own and don’t experience any issues whatsoever. I may just be unlucky and this particular monitor/adapter combo don’t get on.

                Oh and as for connection, it’s literally VGA cable from monitor into above adapter, which is obviously plugged directly into the OSSC.

                November 5, 2018 at 7:52 AM in reply to: OSSC Main Menu(?) losing sync #23594
                beorn
                Participant

                  *Ultrascan

                  November 5, 2018 at 7:51 AM in reply to: OSSC Main Menu(?) losing sync #23593
                  beorn
                  Participant

                    It’s a Dell Uktrascan p991.

                    Yeah I did – no dice.

                    November 4, 2018 at 11:51 PM in reply to: OSSC Main Menu(?) losing sync #23590
                    beorn
                    Participant

                      Test pattern – thanks 🙂

                      I use a passive hdmi to vga adapter. Same adapter I use with two other crt’s I have.

                      No console is attached at this point. CRT loses and regains sync continuously at the ossc test pattern.

                      July 28, 2018 at 10:05 AM in reply to: Light guns #22627
                      beorn
                      Participant

                        So you’re saying because my monitor is a 31khz display this makes it incompatible with light guns that are designed for 15khz / 50/60hz displays?

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