I don't know how it starts. I m suffering landscape screen from origin of the PC. Later came the portrait mode to tabletpc, tablet android, ebooks, and so on.
No solutions in decades. Carring external monitors to rotate. Even press professionals I suppose have the same problem.
No portrait laptop, no specifically design for portrait screens ,...
I only have a solution at least to read webpages , my main hobby. Do you know some greasemonkey script to divide the screen in two?. The right part of the screen must show where last the left part of the screen. I´m not programmer unfortunately.
I think it´s the only way to use a landscape screen in any laptop.
Another suggestion?. I spent a lot of money renovating tabletpc computer in the past because of this " technological tyranny ".
I felt like a

when I saw the surface 3 with an extension for the landscape mode.