@AxelR11 if ya don't mind me ask n.. are ya use 'n - desktop - laptop what version of windows.. what graphic card.. what version of Opera and - is it 32/64 bit.. HDMI Cable or HDMI-DVI Cable.. while in Chrome - which DisplayPort version is Selected.. ya said this - (The problem is that I can not enjoy HDR on Opera, but I can use it on Google Chrome) so i think Hdr works in opera sorta.. but or what kind of problems ya got..