Screen doesn't stay off

[Redbull2515]

Hi everyone,

This is my first post so if i forget to give you informations don't hesitate to tell me. BTW sorry for my english that's not my native language :).

Here is my issue:

When i stay front of my PIR, the screen doesn't turn off, so that's great. But when i leave, the screen turns off only few second before turning back on again.

I have tried to putt the PIR in a black box to be sur the sensor doesn't see me, but same problem. Do you guys have an idea of what is going on ?

Thank you

Edit: I noticed that i have a "Python Callback" that wake up my screen. Might come from DHT22 ? How can i fix this ?