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.

  • Gurm replied to this.

      andc Laptops are rough. You need bottom-of-the-barrel integrated graphics and a known-good OS. And even then it can be hit or miss.

      • hpst replied to this.

          Gurm Could you try @ravipra 's Grub config edit above and see if that helps your strain? I'd like to see more examples of this being tested since I can only do it on one device.

            If I used Linux, I would.

            • hpst replied to this.

              I have a very good IPS panel and I recommend it, by issues I meant it has some functioning issues. The problem with it is that I cannot find it anywhere for sale, because it is not manufacturing anymore. I have tries two of it's succesors from same AUO line, but couldn't use them because of headaches.
              I understand that such a list would be very subjective, as long as there seem to be many other factors that contribute to a ergonomic usage, such as angles, colors, contrast, gamma, besides PWM and dithering. I am on Windows and I use Intel Ditherig

              • hpst replied to this.

                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

                • hpst replied to this.

                  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.

                    I see. I am already using Intel Ditherig to stop the dithering on Intel GPU. If you have a 15,6 inch Thinkpad, I really sugest you try the B156HAN01.1 . However, they are very hard to find, maybe on a ZBOOK 15 (gen1) dissasembly. I was unable to find

                    22 days later

                    Gurm For those of you who are affected by dithering, what are the symptoms you have?

                    Eye pain, migraines, headache?

                    I dont have headches, or migrains. I can have intense eye pain, and other twiches around the body. I suspect that i dont suffer from dithering but more from blue light. Maybe the symptoms are different for the dithering, blue light.

                        tfouto I do get headaches, eyestrains, and sometimes migraines. Recently with the LG G7 I am noticing these twitches or spasm all throughout my body, too, been going on for over a week now. What phone do you use comfortable? Have you tried your colleagues phone?

                            Tightness in the eyes, like I can't focus. It's just serious eyestrain. My eyes get dry and tired. Eventually I get headaches and light sensitivity if I force it. But it's all just a byproduct of "strain". It makes me feel tired, too.

                              I think twitching may be due to the PWM of dithering, as it forces the body to keep adjusting (just a supposition)

                                ryans Gurm I also have eyestrains, sometimes really hard and photobia when i push too hard. But i dont usually have headaches or migrains. Sometimes in certain conditions i have my leg twitching and cramps. In worse cases it's really strong cramps. It's crazy. I used to think that i am more on the blue light then dithering. But i really dont kno

                                I had the HTC One M7 which was fine on low brightness. But the phone is almost useless now. I am using an Xperia XZ 2 but it's not really safe. But right now i am using just with left eye open, and i found it confortable. I am using for 2 days just with the left eye open. It's ok. But i have my eyes sored, i need to make them fresh to start the test properly. When i open both eyes, i almost feel pain shortly afterwards, and maybe twithcing. I want to give rest to my eyes to keep expericing this one eye thing.

                                I just tried my colleague phone for like 10 seconds. Didn't had the opportunity to really check.

                                I also have an 27' Samsung SA850D monitor. It's perfect when has 0 brightness. This was the initial trigger for me. THis monitor. I used it at full brightness when i bought it. I was marvelled by his image, watching photos. 2 days later i was it terrible terrible photobia, and eye strain. Then took a time, to settle. Later used with flux with 25% brightness, then 0 brightness with no flux. Ok. I can spend a all day using with no problem. I have a GTX 670 and Windows 10 with latest update.

                                Alyosha2001 I think it would be usefull to make a thread/wiki with symptoms (specific, not generic) and the cause of it. What triggers it.

                                Eye Strain is too vague. Is like knee pain. There's so many reasons for a knee pain. We cant mix everything and try to find a sole conclusion. More schematic thinking and trial is needed.

                                      Does temporal DIthering happens on VGA output?

                                      For instance an Intel Graphics like 2xxx series it it's plugged on the VGA to the monitor, does the dithering occurs? Or just on HDMI/DisplayPort?

                                      From what I can gather a display has native bit depth of say 6, 8, or 10. It then has a alpha channel besides the native bit depth where dithering is assigned. If the display is a non FRC i.e it does not have a alpha channel, the display would not be able to dither regardless of input due to hardware limitations. Is this not correct?

                                      I don't know about dithering, but analog VGA has, in most cases, noise, which also induces some jittering

                                      13 days later

                                      Does anyone know whether Ditherig is supporting Intel 8th-gen processors? I think there was a very terse/generic note about Coffee Lake being supported and the install seemed to work. However, I'm still trying to tell the difference between settings on/off, and seem to continue to be symptomatic.

                                      Using an i7-8700k and MSI 1070. White screens still look a bit funny to me and I think symptoms are starting to appear after an hour or so of usage 😢

                                      Was really hoping that the temporal dithering thing was the solution. Not sure I like this monitor on any device so I need to give one other one a go, but still disappointed and hoping there's an easy answer, yet.

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