AgentX20 Are you saying monitors that explicitly advertise being "flicker free" still have some PWM? PWM at lower brightness levels isn't common anymore. I don't even know how to adjust the brightness level using my OS. I use integrated Intel graphics and Ubuntu Linux.

  • KM replied to this.

      K-Moss At least they have a ripple. That's not PWM but flicker nonetheless. How big it it is and what frequency they use differs between models. To me it looks like even small flicker can cause symptoms.

      Changing the backlight brightness can change both amplitude and frequency of the ripple, so experimenting with brightness may be worth it. There may be a sweet spot that's usable. It doesn't have to be 100% in this case.

          KM Do you know how I can use 100% brightness on the monitor and adjust via software to lower the brightness at the GPU level?

            I doubt flicker free monitors have PWM but you never know - they may just have a higher frequency.

            I use the Nvidia control panel to reduce the brightness so it's probably card/brand specific.

            8 days later

            reaganry

            Are there any others recommended? Like a globally foolproof option?

            I get sick from all I've tried and quickly.

            I've tried Dell U2414H, Dell 2407, MSI MAG27CQ, BenQ EW2440L. The EW2440L which I have at the moment gives me very long lasting stuff from very short exposure. It's the first time I've had to switch lighting at home back from flicker free good spectrum LEDs to incandescents. I use an NVIDIA 970 graphics card and Windows 7. At this stage e-ink is my only friend.

                noigmn an advanced explorer 🙂 you need to focus on your GPU I think. my last good NVidia was GTX750. My current good setup is LG24GL600F, W10, RX580, displayport, reduced blacks. Headaches for the first few days and then smooth sailing for the past 6 months

                    3 months later

                    reaganry going strong until my motherboard crapped out. now back scrambling and trying not to kick the dog. grr.

                      22 days later

                      Quad43 Anyone know why 2717d would be problematic when Dell 24XX are great?

                          Quad43 Anyone know why 2717d would be problematic when Dell 24XX are great?

                          The Dell 24XX monitors have a CCFL backlight, rather than an LED backlight. For many folks this is easier on the eyes. For example, although they have PWM to control brightness at around 60% brightness and lower, the CCFL light source dims slower than an LED (which is abruptly on-off) so makes for a smoother effect on your eyes.

                            Thanks, maybe I rid of my 2717d then as I get pain only above my left eye(brow). With slow-mo I don't see any PWM or anything. Maybe 24xx is just one I stick to.

                            6 days later

                            Personally I just found something interesting about new monitors; business monitors work for me, even new ones, just like business notebooks.
                            At my workplace we have HP business notebooks, older ones and brand new ones as well and i don't have any problems with them. I was also buying for myself a small HP 840 G3 for general use and it just works as I expected.
                            Business displays as mentioned are also ok and at my workplace we have Samsungs, HPs and Dells. Even ordered some time ago a new Dell UP3017 at work, I was literally afraid to begin to work on it, but then it turned out absolutely problem-free.

                            For me personally, the business line remained the way to go in private life too.
                            Hope this helps someone too!

                            PS.: afaik, the business displays have the 16:10 aspect ratio

                              tsb What is different about those business displays? I thought they're essentially the same.

                              • tsb replied to this.

                                  K-Moss I really have no idea, however they are not causing me any problem, at least the ones I use around.
                                  Maybe it is not even generally so, but so far I didn't have any problem with HP products.
                                  I'm clueless.

                                      tsb

                                      Could be worse contrast and slower response times as those things aren't important for normal work use.

                                        3 years later

                                        These monitors are good but don’t have an anti-glare coating and low blue light technology, so they cause pain. Here in our factory, we have newly designed 24 Inch Touch Screen Monitors with anti-glare coating and low blue light technology. Also, this monitor features InCell Touch Technology to provide sharp and stunning graphics. You can find this here, model no is ZL24TMBCAP-P,

                                        https://baobao-industries.com/product/24-inch-touch-screen-monitor/

                                        I hope this monitor will help revive your body strength and decrease pain. Also, this monitor comes with 1080p resolution and a wide viewing angle.

                                        dev