Users of the Raspberry Pi 4 mini computer are puzzling over an issue where setting some display resolutions have the side-effect of killing the Wi-Fi connection.
The problem was noticed by developer Enrico Zini, who is working on a digital signage box using the Raspberry Pi 4. “One full day of crazy debugging, and the result is that if the Raspberry Pi 4 outputs HDMI at a resolution of 2560×1440, the Wi-Fi stops working,” he reported.
![](https://regmedia.co.uk/2019/11/28/rpi4.jpg?x=442&y=293&crop=1)