Display activates independently?

And although activates my screen on my phone (Huawei P30 Pro) independently. For example, it's on my desk and it just works without doing anything!

Who has a tip, please report.

Please no stupid answers.

Maybe you have set that with push notifications the screen goes on briefly

Do you get any notifications from certain apps? There are some apps that have access to the activation of your display. Another possibility is that your phone has a motion sensor that does not work properly.