AMD card + lg 34gk950f missing full colors range when set to "automatic". has to be set @6500k. honestly, i'd prefere to set it to "automatic" as i use f.lux.
Did you install the driver for it? There should also be some ICC color profiles associated with the device files.
I've got two different LG freesync monitors and I had to manually install the color profiles for both before they started showing the correct setting in windows.
