HOWTO: Quick Frame Transport (QFT) - Large Vertical Totals (reduce lag, reduce crosstalk)

[Chief Blur Buster]

Can i ask someone here, what are the best combos of sync polarity sings,because i asked chat gpt and it cant answer but it gave me 4 combos,my default was + -,i tried "- -" ,"+ +" and i am back to "+ -",also first pic is my timings second is what chat gpt tuned timings is.and also yes i do play 640x480 on 240hz,and i dont really care.

Don't worry about polarity. Those are legacy analog-era vestigals.

[JimCarry]

Can i ask someone here, what are the best combos of sync polarity sings,because i asked chat gpt and it cant answer but it gave me 4 combos,my default was + -,i tried "- -" ,"+ +" and i am back to "+ -",also first pic is my timings second is what chat gpt tuned timings is.and also yes i do play 640x480 on 240hz,and i dont really care.

Don't worry about polarity. Those are legacy analog-era vestigals.

ok then i change mine to --

[MSIfanboy]

xl2586x 540hz, at 400hz, its the best ufo i ever seen, i also have pg248qp, rolling scan is much better on zowie, even though its slightly better than 540/500hz, i would still run 540/500hz, mouse just feels better

[EverSurface]

Do not use software to make custom resolutions and hz... warranty is dead.. on monitor that it cost 1300 dollars or 1300 euros... read manual in benq Zowie... and do not watch motion blur test only it is not same as gaming... if u want real motion blur test u need 1000 fps camera to see the difference.. 540hz vs 400hz.. at very fast moving...

[user256]

Can QFT be used with Special K's Latent Sync, if yes, do you set it up in a similar way to QFT with RTSS Scanline Sync?

Can I somehow set up vertical totals, so that on a CRT at 60 Hz (e.g. for a game limited to 60 FPS at 640x480 or 800x600 resolutions), combined with Scanline Sync / Latent Sync, the refresh cycle would be transferred like at 144 Hz. The monitor can display VGA / SVGA resolutions at 144 Hz.

Regards

[RealNC]

Can QFT be used with Special K's Latent Sync, if yes, do you set it up in a similar way to QFT with RTSS Scanline Sync?

Yes. QFT makes latent sync and scanline sync better in fact, because it gives them more scanlines to work with. Much higher headroom to hide the tearline in.

[Chief Blur Buster]

RealNC is correct here.

Large VBI (vertical blanking interval) is a bigger timing jitter safety margin to hide a VSYNC OFF tearline between refresh cycles.

[user256]

RealNC is correct here.

Large VBI (vertical blanking interval) is a bigger timing jitter safety margin to hide a VSYNC OFF tearline between refresh cycles.

Thank you for the reply! What about the CRT part of my question?

Regards

[RealNC]

Thank you for the reply! What about the CRT part of my question?

It's the same there. If the CRT can handle the signal, that is. If you stay within the timing spec, it should be fine. Exceeding the rated maximum pixel clock (or horizontal frequency in kHz) is not recommended on CRTs as it can cause damage.