Return to QT app after going to virtual terminal RPI

[rodripf]

Hi there!
I am running a QT5 app on a raspbian based raspberry pi. The thing is if I go to a virtual terminal (e.g. pressing Ctrl + Alt + F1) I can't find a way to going back to my QT5 app after that.
Going to terminal 7 (sudo chvt 7) goes to the startx GUI interface, but not my QT5 app.

I guess it must be some way to tell linux, "resume rendering to screen the QVFB", but I have no clue of how to accomplish something like that.

The app is being compiled with the default configuration for raspberry pi.

Any idea? Thanks