Reinhard62 Yes it works to a certain extent, I have tested Ditherig on on intel irisXE, and also OFF,
I could work for around 2 hours without any headache with ditherig on, reason It only eliminate software based dithering not on hardware level. Test with a Heavy gradient wallpapper, ON and OFF, when dithering is off, you can see gradient becomes bit noisy like an old video quality.