[ViewSonic XG2431] PureXP enabled + BFI software (SW) cause burn-in but BFI HW not

[nuninho1980]

Hello.

I received new ViewSonic XG2431 monitor yesterday. I changed monitor from CRT monitor to new today.

Both PureXP enabled with Ultra preset and BFI software (SW) (eg: DesktopBFI, ShaderGlass...) cause burn-in at 1920x1080@100Hz with 50Hz BFI but BFI HW (hardware: PureXP* with same preset) only not.

* - at 50Hz, we can't enable PureXP+ due to be grey in OSD. But we need new firmware of ViewSonic to add 50Hz support for PureXP, ok?

Best regards.

[nuninho1980]

I've edited OP to add "Both PureXP... + BFI...".

[kyube]

I received new ViewSonic XG2431 monitor yesterday. I changed monitor from CRT monitor to new today.

Both PureXP enabled with Ultra preset and BFI software (SW) (eg: DesktopBFI, ShaderGlass...) cause burn-in at 1920x1080@100Hz with 50Hz BFI but BFI HW (hardware: PureXP* with same preset) only not.

* - at 50Hz, we can't enable PureXP+ due to be grey in OSD. But we need new firmware of ViewSonic to add 50Hz support for PureXP, ok?

Best regards.

I think you should use Nvidia's Smooth Motion or LSFG (frame interpolation solutions) along with PureXP (LCD backlight strobing) instead of using 2 different single-strobe solutions.
Global scanning LCD backlight strobing (what PureXP is) exhibits extreme light flicker <100Hz, especially at the 50Hz value you're trying to target.
Low hz (<100hz) light flicker should be avoided at all cost for eye health.

[nuninho1980]

I think you should use Nvidia's Smooth Motion or LSFG (frame interpolation solutions) along with PureXP (LCD backlight strobing) instead of using 2 different single-strobe solutions.
Global scanning LCD backlight strobing (what PureXP is) exhibits extreme light flicker <100Hz, especially at the 50Hz value you're trying to target.
Low hz (<100hz) light flicker should be avoided at all cost for eye health.

Burn-in doesn't mean eyestrain but yes BFI SW affects XG2431/XG270 (only?) monitor.

I'll enable Smooth Motion... But I do never use Frame Generation.

NOTE: I don't have any eyes' health issues when I watch live TV at 50Hz on old CRT monitor but this is amazing as puresmooth motion.

[nuninho1980]

I've updated to new lastest NVIDIA Studio v580.97 driver with lastest NV app for GeForce RTX 4090... but Smooth Motion is greyed.

I can't try LSFG due to paid. lol

[Discorz]

* - at 50Hz, we can't enable PureXP+ due to be grey in OSD. But we need new firmware of ViewSonic to add 50Hz support for PureXP, ok?

Here is a comment you might find useful: viewtopic.php?p=109300#p109300

I used to have a XG2431 batch that can do <60Hz strobing. Although pulse width and other strobe utility settings were locked and pulse was too dim/short. It was probably a bug that they later fixed...

I believe it was stuck at 10%PW/Ultra, so ~50 nits. I didn't check what firmware it was. All I know is V015 can't do it.

There is a way to strobe any Hz via service menu, but I'm not sure if I'm comfortable sharing how to since it involves playing with LED voltages. If u don't know what u're doing it can damage the backlight LEDs. Do it at your own risk!

Edit:
Service menu trick won't work well for <59 Hz. V015 batch double strobes as a flicker prevention. And if strobe phase is inaccurate it can't be fixed since Strobe Utility is not supported at <59 Hz.

[nuninho1980]

Here is a comment you might find useful: viewtopic.php?p=109300#p109300

I've replied this.

I used to have a XG2431 batch that can do <60Hz strobing. Although pulse width and other strobe utility settings were locked and pulse was too dim/short. It was probably a bug that they later fixed...

I believe it was stuck at 10%PW/Ultra, so ~50 nits. I didn't check what firmware it was. All I know is V015 can't do it.

There is a way to strobe any Hz via service menu, but I'm not sure if I'm comfortable sharing how to since it involves playing with LED voltages. If u don't know what u're doing it can damage the backlight LEDs. Do it at your own risk!

I don't know what's version of firmware of my monitor because I can't enter service menu.

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I edited to delete "we blame likely abnormally and randomly few freezes per minute or per 10~15 seconds of flickering issue on "DesktopBFI" app or "ShaderGlass" app with "BFI-sample" for burn-in issue". Because I got no any freeze of flickering on WinUAE emulator with BFI enabled but, minutes later... I get still burn-in again.