Temporal Dithering Sensitivity - My Solution

Part of the problem is that many GPUs these days are just forcing dithering on, so there's no smarts involved.

si_edgey Hello, I'm having pretty much same troubles. Does it happen to you to be color blinded? Cause I'm slightly color blinded and I wonder if there is a link..

I am currently using Dell XPS 13 9310 2-in-1 as a business laptop on Windows 10 Pro version 21H2 and built 19044.2006. I connect it to a CCFL display Samsung B2240.

I use it daily either connected to the external display or directly and strangely it is fine. To connect to the external display i use dell's docking station.

I get tired eyes after many hours of work and mainly when looking directly to the laptop's screen. Very seldom i may have some migraines, again after hours of use without rest.

This laptop has the eyesafe.com technology, but i don't know if this is affecting anything.

It may worth to try, if i can use it perhaps it is ok for some of the people in this forum as well.

For those of you who have experienced the eye strain issue on both WIndows and Macs, and have deployed the technique described here to turn off dithering in Windows and had success in eliminating the problem….has anybody tried using the now non-strain Windows machine to remote into a Mac and see if the eye strain is still there when looking at the Mac through the Windows machine?

MPaz Asus PG259QNR is 8 bit +FRC so potentially it can use dithering. Maybe that's why the strain. Idk

Allekss In theory only outputting an 8-bit signal to a monitor should not result in any FRC stage by the monitor circuitry.

For example i have an AMD GPU (Stationary PC ) and an 6 bit + FRC monitor. Can i limit the AMD GPU (or Nvidia) output to 6 bit so my setup don't use dithering?

Allekss Not sure about that.

Modern graphics are 8-bit by default, and the idea is actually getting a 10-bit signal to a monitor is Work, so by virtue of not doing anything you're usually in the clear

Allekss i have the 6 bit option on my 580, but it doesnt seem to help much

ditherig author does not answer to emails, the program clearly does not work in my computer. I shows temporal flicker videos about it. I wrote ditherig author 2 times and no reply. I thought he will fix his software.

Has anyone got a reply from him? His email is s_kawamoto2307 at yahoo.co.jp

smilem GPU dithering is possible on every monitor including 10bit monitors?!

smilem Makes no difference if the signal is converted from digital->analog with dithering intact.

"Makes no difference if the signal is converted from digital->analog with dithering intact."

You can't cheat laws of physics, phosphor on CRT disables all kinds of dithering the software or GPU hardware related. It's like water can't burn. So same here CRT can't dither.

smilem you could try tell him about some bugs in his programm in Gihub Issues https://github.com/skawamoto0/ditherig/issues sometimes he answers but not very detail

si_edgey and @Luki99 How severe were your neck pains? I'm facing the same thing, although Im not getting any eyestrain.

JTL Moire patterns, from wiki : "Photographs of a TV screen taken with a digital camera often exhibit moiré patterns.

To avoid the effect, the digital camera can be aimed at an angle of 30 degrees to the TV screen."

Maybe this should be a part of our testing method ?

autobot Maybe this should be a part of our testing method ?

I think using standard framerate cameras is "barking up the wrong tree" for testing for temporal dithering or other onscreen artifacts (i.e not backlight PWM).

Don't have the link handy but I believe the Blur busters person (from another forum) says in order to catch "everything" you need a camera with a framerate of at least ~5000fps. Not cheap.

You might be thinking "Well, why do I need that for capturing from a 60Hz display?". I assume when you get into issues such as LCD inversion, FRC (monitor sided dithering) and such that aren't necessarily tied with the monitor "refresh" frequency, that's when you need to bring out the fancy stuff.