Show keyboard on ubuntu

[ivanicy]

Hello!

I am developing an application that runs in Ubuntu Linux. I want to install it in a touch screen. I have some input widgets in the ui (like QLineEdits or QTextEdits) and when I run it with this screen and I touch on the widgets, the keyboard doesn't appear.

How can I fix it? Has Ubuntu something like a tablet mode? because in windows, when I set the tablet mode, it works.

Thank you very much!