my 2090UXi support calibrating using hadware LUTs in SpectraView Profiler 5
maybe you need to fiddle with software and firmware. Maybe something with DDC stuff.
In LGs "True Color Finder" software I had lots of issues with DDC and was unable to hardware calibrate on my normal PC in Win7 64bit. It didn't even work in normal 32bit XP. I was finally able to calibrate it using Via C3 Terminal on DVI output in XP.
On EIZO site it is stated that S2433WFS-BK support "10-bit hardware calibration" so it should support it. Make it work =)
Eizo calls it a hardware calibration but it works quite different than what I would call a real hardware calibration, for example available for the Eizo CG oder NEC PA/ SV screens. Finally it is a comfort feature. EasyPIX sets OSD options (RGB Gain, Brightness, Gradation) automatically. There are no further optimizations. The grey axis is not touched You can compare this to the first step in a software calibration process where the user is guided by the software to reach the calibration aims as close as possible through OSD controls. EasyPIX makes this for you but then skips the videocard LUT optimizations and profiles the display directly.
All in all s2433 is a great monitor