Temporal Dithering Sensitivity - My Solution

KM The only time I have "seen" it is in the Dasung videos but who knows if that display is translating how it actually looks on an LCD that is more capable? On the Dasung's it looks like wiggly maggots and not very fast. But I also don't know that it really matters since looking at any image that you think is static, but its constantly wiggling, can't be comfortable for the visual system to parse I'd think. I have said before if dithering is the issue I think its more the movement of what is displayed, even a white background, than flickering that's an issue. That may sound like a pedantic difference but I mean that flickering is just "on/off" of a point in a regular frequency and happens all around us even in incandescent lighting....apparent movement of the elements/background is a different thing and adds complication to what the brain/eyes have to process.

@ravipra I am not seeing any super obvious relief with just the one GRUB setting change on my painful laptop. I haven't used it for a long time but it's still a harder to look at than my 12yo CCFL laptop just at first glance, but it's also hard to trust subjective opinions in the short term as I am afraid of this bad laptop anyway and don't know if symptoms are real or imagined. I'd really like to see how it is with an identical setup to yours. I have a 16.04 iso of Manjaro KDE but have never used it...though I don't see how that should be different than KDE Neon for this issue. Was the difference obvious to you immediately? Or it took some time to adjust?

Alyosha2001 The problem is we don't yet know for sure what the issue is, and there is no universally safe panel because it's likely not the panel hardware that is the root problem. I tried a dozen different panels of different specs in a Thinkpad, and tried every new model of every brand I could find in a shop. I have seen a handful of people say the older Dell CCFL dekstop panels of various models are good for them, but I have also seen one or two people specifically mention those same panels causing problems.

The one exception in my opinion would be if you have a severe problem with PWM and have confirmed this in testing by getting relief when using a display without it regardless of what computer/gpu/os is driving that display. In that case LG and AUO internal laptop panels usually are PWM free (didn't help me at all and strained as much as brands with PWM) and for desktop monitors you'd just have to find the specific panel inside it and research it.

Alyosha2001 My laptop screen has issues, and I cannot find a good alternative, I've tried 2 newer models, they all give headaches.

I've been looking for the same thing too - there seems to be no winner across newer devices, maybe some PWM-free TN screen with very cheap graphic card, but it means sticking with Celeron / mobile CPUs. If that's enough for your needs, I'd try to find something in this range. Otherwise it's hit or miss where hit usually means medium strain and miss means headache or severe pain in the eyes.

Alyosha2001 What AUO panel are you using that is ok?

I am using AUO B156HAN01.1and it is good for me. But i've also tried B156HAN01.2 and B156HAN06.1, and, after couple of hours, gave up. The difference in image is also noticeable; even if on paper they are the same, it looks like the newer models regressed

Alyosha2001 This is just super confusing because I can't think of any reason why the revision panels would be that different and their specs are identical in nearly all regard. I think one of those had 300nits brightness vs 250 on another but the color depth and everything else was the same. Personally NONE of the panels of any brands I tried in my Thinkpads were ok so I can't even start with a good one to try and dig into further. Since I have never seen someone solve strain with a panel transplant, and seeing how the only real relief anyone has had was with GPU/ software changes, I was fairly sure it was not display hardware related.