Hi there. I’m trying to understand some frankly wierd behaviour on my setup. I have a single HTPc with integrated Intel Iris(?) Graphics. From there it goes through a 4K 120hz splitter, and then to 2 receivers and then to 2 displays (one projector, one 55” tv), both 4K. I had the windows display scaling set to 200% to make stuff readable on the 4K displays, and everything was working fine. A little while back, probably at the time of doing a gpu driver update, things changed, and the windows scaling value changed when using one of the displays. If using the projector it would be 200% as originally set, but when using the tv it would change to 300%.
I understand that edid contains lots of data about the screen, and has read stuff somewhere about the scaling value changing based on the physical size of the screen, but I can’t find any details of how this is controlled etc. I also found that by setting a custom scaling value, it prevents scaling being changed by the edid, solving my original issue.
Anyone point me towards any further info on this.
