Hypersensitive touchscreen - randomly selected settings during call

During calls my phone regularly starts pulling down the settings menu and changing all kinds of settings, for example entering flightmode or enabling mute, to name only the most annoying. It barely seems credible but my feeling is I’m pulling down the menu by touching the screen with my ear or cheek. In fact it is almost impossible to make a phone call without using a headset … I’ve seen a suggestion somewhere to turn the screen off after dialling - but surely there must be a better way? Shouldn’t the phone just recognise it is held to the ear during a call and be non-responsive? Is there any way to influence that? I quite like using the on/off button as a simple way to end calls …
Thanks, Maak

A post was merged into an existing topic: Fairphone 2 proximity sensor not reliably turning off screen during calls