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FP2 Screen shows temporarily artefakts which are lattice-like

My FP2 Screen shows temporarily artefakts which are lattice-like. This phenomenon is very obtrusive so working with my FP2 is cumbersome.

The occurance of an fullscreen overlay of artefacts which are lattice-like cannot be lead back to some apps. This behaviour appears by chance.!

When I touch and wipe the center pane of an app, the disturbance remains in the other parts

I changed the screen, using another screen coming from a proper working FP2 - the problem with my FP2 did not disappear.

I performed a factory reset (!) and the problem did not disappear as well.

Also done without fault indication: Checkup (hardware diagnostics)

Nigthlight is off. No other nightlight app installed.

A post was merged into an existing topic: Strange screen issue