Yoga 2 Pro REAL Screen Resolution

SECOND THREAD on this HERE.
I've just discovered that the Yoga 2 Pro seems to be fudging its screen resolution claim. I wouldn't care, except ... it actually has become a small problem ... and one that I presume will get bigger over time
The Y2P has a "3200x1800" screen. It's beautiful. And in most regards its also overkill, since there's no such thing as 3200x1800 content, AND because it cause some issues with size of things on the screen. For this reason, and because pushing fewer pixels will tend to improve battery life, I run my Y2P at 1920x1080, or "normal full HD" resolution.
I recently tried to log into an on-line app I use, as was greeted with a strange error message:
Well, since I'm running 1920x1080 and using a current version of the Chrome browswer, none of that made sense. I tried Internet Explorer as well ... no luck.
I installed Speccy, a tool to check things out inside a computer, and when I got to the display settings, here's what I found:
That's right; I'm "set to 1920x1080", but something is seeing that the REAL resolution is 1280x720. Oh, and elsewhere in Speccy I found that the Y2P is reporting itself as a tablet rather than as a computer ... which probably isn't the issue here, but still unsettling.
So I changed the resolution to 3200x1800. Good news: I was able to get to the web app I need. BAD NEWS: The real resolution appears to be 1600x900:
I called Lnove tech support and got a representative who tells me that this is a Windows 8.1 problem; Windows 8.1 cannot support resolutions higher than 1920x1080, so even though the actual hardware resolution of the Y2P is 3200x1800, it needs to scale itself so Windows doesn't cry. This appears to be false (http://blogs.msdn.com/b/b8/archive/2012/03/21/scaling-to-different-screens.aspx), but I don't really know.
As such, my conclusion is that the representative told me something that was actually the opposite of correct, with correct SEEMING to be that the maximum REAL resolution of the Y2P hardware is in fact 1600x900, with Lenovo's claim of a 3200x1800 resolution being a software/upscaling/interpolation trick.
If that's so, it's really distressing, because it would appear to be a lie about hardware capabilities.
I didn't start out caring about that, although obviously as this point I feel like I've uncovered a smoking gun and would like an answer from Lenovo. But at the end of the day, since I don't need or want that 3200x1800 for the reasons I explained at the top of this post, I just want to know the truth—whatever it is— and to know how to get Windows to report the same resolution to "the world" that it's reporting to me, the user.
And I guess I wouldn't mind knowing why the scaling between real and interpolation is different depending on the settings one selects, too (do the math).
Anyone know anything conclusive? And even better, anyone from Lenovo have an ideas what the truth is here?

I don't know if any of these settings (resolution and/or item sizing) affects battery duration. But you could do a battery test: set it to one mode with full battery charge and then leave it on unused until the battery is 50%. Check how long that took. Repeat for the other mode and compare the time difference if any. 
As to why there are these two layers of settings I think this is the answer: Windows metro apps and some Windows desktop application and the new elements in Windows 8 (the new start screen, the charms bar and all metro apps) have smart scaling of user interface elements (text, buttons and so on) designed to support very high resolution screens like ours. So buttons and text in such programs will adapt in size to fit the resolution. But older desktop applications, including the Windows 8.1 desktop taskbar and its icons it seems, does not do such smart scaling. So running them full resolution mean that everything is really tiny. To work around that everything can be scaled up to 200% (or 150% or 125%). I suspect that future versions of Windows or some Windows update may improve these things since the settings and the button descriptions in the settings aren't very user friendly.
But I'm not sure about this. I hope someone in the know jumps in this thread and gives more details.
It is a pity that Lenovo doesn't provide new Yoga 2 Pro users with a user friendly guide with information and tips on good ways to deal with resolutions and these scaling settings.

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