ryans I first discovered the issue in December 2011 when I built a brand new gaming PC, and bought a Samsung SyncMaster S24A850DW. A beautiful-looking monitor it was, but it felt like I was staring into a flashlight when I was using it, even at the lowest brightness setting.
Then at work when different colleague's monitors would get replaced, I would notice immediate issues when looking at the following displays:
- Dell P1913
- Dell U2413
- Dell U2713H
- Dell 1914S
I also want to point out that I don't think there is anything inherently wrong with the displays above, as others use them all the time and don't complain. The issue is likely the one typing this message, lol.
I was given a Dell U2410 at work in June 2011, and it gives me no problems (aside from usual eye strain and fatigue if you use it too long without breaks) at 0% brightness, "Warm" Preset Mode, and f.lux running at 5000K.
Also interesting to note that even my Dell U2410 will give me issues that feel similar like the LED list above if I revert it back to it's default settings of 50% brightness, "Standard" Preset Mode, and no f.lux running; however, it will take orders of magnitude longer time to set in (i.e. 100 minutes versus 10 minutes). I will deliberately do this from time-to-time when working on color-sensitive work, and I just put up with the pain until I'm done my work, and then I revert it back.
Because of my findings above, I theorize that I am light-sensitive in some unknown way. However, I seem to be more in the minority of people here, who are more suspecting issues such as temporal dithering, or certain graphics drivers, or Windows updates, etc.