I'm not sure by what I/O the Dell sw would communicate directly, could you clarify that?
Yes, I have have read that the Win 10 bit has problems, particularly that if you set it up some of your apps don't work. Even so, it is unfortunate that you can't use the DCCS with a WIN virtual machine because there has to be a physical USB.
With 40 years experience transitioning design to production, I'm well aware of the tricks the factory uses to get hardware out of the house. Test til it passes, uncalibrated test equipment which is always mysteriously biased toward acceptance, testing in the wrong order, misreading the print, and so on. Still, you would think that Dell values their reputation for adequate consumer gear and would not provide a fake cal sheet. I'll have to dig mine out and post it here.
i wonder if the DCCS version for Mac only sends 8 bit/channel images to the Mac for display or somehow using the mystery I/O you referenced it sends 10 bit which the monitor then displays as 8bit+FRC. I'd really like to see a flow diagram. Anyway the least significant 4 bits of the LUT are probably linear interpolation, the next two up are from FRC if the DCCS puts them there, so what do you really have? Also I sonde if the Windows version actually expects a 10 bit flow?
The so called expert in Photography Life who wants everyone to use Windows and buy an Eizo has alsosaid you can't calibrate the U2413 because it is a GB-LED. The DCCs and i1 Display Pro are explicitly set up for just that so it is not a problem. Dell is definitely not that stupid.