Originally Posted by qwerty12

It's also possible to force a window of your choosing (instead of the entire system) to go into portrait mode, too.

I did this via SSH, but you can use something like "wmctrl -l" and pass the window IDs to the -id parameter of xprop:

Code:

xprop -f _HILDON_PORTRAIT_MODE_SUPPORT 32c -set _HILDON_PORTRAIT_MODE_SUPPORT 1
(*tap window*)
xprop -f _HILDON_PORTRAIT_MODE_REQUEST 32c -set _HILDON_PORTRAIT_MODE_REQUEST 1
(*tap same window*)