That's what appears to be happening. The screen appears just a little taller than 16:10 - in windowed modes where the menubar is present, the menubar extends i

That's what appears to be happening. The screen appears just a little taller than 16:10 - in windowed modes where the menubar is present, the menubar extends into this additional headroom. In fullscreen modes, the extra headroom just isn't used - it's blacked out and the screen is presented as a 16:10 screen. So it's treated the same way as the iphone treats it - extra space that can be used usually, and just isn't used where it's not sensible.