Well you are right. I tested in cooktimer and it worked directly I was testing it in a whitelisted-application. I have rtcom-messaging-ui on my whitelist + modified csstheme to display conversations correctly in portrait. If you launch the vkb from a whitelisted rotation the vkb you see the behaviour I described in my previous post. Mind telling me how you took the screenshot? I am having a hard-time taking a screenshot with vkb on it :P
gst-launch-0.10 ximagesrc ! video/x-raw-rgb,framerate=1/10 ! ffmpegcolorspace ! pngenc snapshot=false ! multifilesink location="frame%05d.png"