kivy app keeping focus whatever other app is displayed

[JChdeL]

Hi,
I wrote a Kivy app on my mobian pinephone (phosh). Main screen is just 3 buttons and a label.
If I switch to another app, the touches on the display are still sent to the kivy app. 
Even if the display is turned off, the touches on the black display are sent to the kivy app...
Is that behavior expected?
How to avoid this?
Best,
Jean-Charles

[Kevin Kofler]

Looks like a bug in Kivy. Reading https://kivy.org/doc/stable/guide/inputs.html, it looks like Kivy reads input on GNU/Linux by accessing the input hardware directly (see ProbeSysfsHardwareProbe), bypassing all window management, which would explain that behavior. So I can only conclude that Kivy is currently not suitable for developing applications for GNU/Linux.