The full path to fix the problem.

[naporitan]

Now I have the latest version of BIOS and Windows 11 Home 24h2. XMP is activated, secureboot/tpm is enabled, SVM is disabled.
All drivers are downloaded from the official website of the motherboard and the latest version of the GPU driver.
After installing all Windows updates, I launch and update all applications through the Microsoft Store, since among them there are very important components - viewtopic.php?f=10&t=14883&start=60#p118589
The system is activated using the massgrave script.
reflex disabled/fps_max 400/resolution 1280x960 (stretched)
0 tweaks/I don't change powerplan, timers, regedit etc.
nvidia settings are all default, but I activated GPU scaling and override scaling mode set by games and programs.
benq xl2546, picture mode: gamer 2, Dyac disabled. The driver for the monitor is installed from the official website of the monitor.
I connect the mouse and keyboard to the correct USB ports - viewtopic.php?f=10&t=14883&start=50#p118569

Wlmouse Ying (red)
mouse settings: (I warn you that it is not recommended to set debounce time 0ms on mechanical switches.)
I have this value set because my mouse has optical switches.
sens in game 1.6, 800 dpi
mousepad: mgg ultraaceaim

mouse.png (374.77 KiB) Viewed 503 times

IPI AURORA65 (Silver, Lightning Magnetic Switch)
keyboard settings: polling rate - 1000hz

1.9kd/140 ping

20250908085956_1.jpg (284.88 KiB) Viewed 504 times

cpu - ryzen 9 5950x
mobo - asus rog crosshair viii hero (wifi)
ram - F4-3600C14D-16GTRGB
gpu - msi 3090 suprim x 24gb
psu - Super Flower Leadex Titanium 850W
cooling - Arctic Cooling Liquid Freezer iii 420mm argb black
ssd - samsung 970 evo plus 500gb

[naporitan]

Interesting fact: on a faulty system dyac does not work, you can check this using your phone camera.
On a working system with dyac enabled, there should be horizontal black stripes on the monitor.
When dyac is on, my head and eyes start to hurt.

phpBB [video]

phpBB [video]

[naporitan]

phpBB [video]

[naporitan]

phpBB [video]

sens in game: 0,503
reflex disabled

[Slender]

hallucinations

[MeveSPB]

Interesting fact: on a faulty system dyac does not work, you can check this using your phone camera.
On a working system with dyac enabled, there should be horizontal black stripes on the monitor.
When dyac is on, my head and eyes start to hurt.

phpBB [video]

phpBB [video]

Depending on how you turn the camera over, the lines can be either horizontal or vertical. When dyac is off, they are also there, but less pronounced.

[naporitan]

Depending on how you turn the camera over, the lines can be either horizontal or vertical. When dyac is off, they are also there, but less pronounced.

Yes, the lines depend on the camera position. But when I turn off Dyac, the lines disappear completely.

[naporitan]

phpBB [video]

Playing with dyac on gives me a severe migraine. It's also as if the stress is increasing.
https://www.reddit.com/r/Zowie/comments ... _eyes_are/

There is no Dyac technology on older benq monitors, but instead there is BFI, which is enabled by default and cannot be turned off, and your eyesight deteriorates very much!
The xl2411p doesn't have Dyac technology, but instead it has BFI, and it's the kind of thing that destroys your brain and eyesight.

Снимок экрана 2025-09-09 192956.png (11.82 KiB) Viewed 191 times

https://www.reddit.com/r/Zowie/comments ... &context=3

I get severe migraines when Dyac is turned on and stress, but if it is turned off, I always feel good even if I sit all day.

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