I am on Kubuntu with a 2:1 laptop. Everything works apart the default on-screen keyboard. It appears when I click inside some document with the mouse, not with my fingers. It is getting really really annoying. The fact is that I have not found any way to disable it. It basically does not exist in the system settings.

Just to let you understand, the virtual keyboard I am speaking about is the default KDE one, the one based on Qt. (just google Qt virtual keyboard).

Any idea on how I can disable it ? or where the settings can be found?

Thank you very much in advance!

Self reply.. QT_IM_MODULE in .bashrc was set to virtual keyboard.. just remove this env variable and it works!