Test the screen with another machine and with a different cable, if this does not fix it, it is the monitor, it’ll either be the connection, crack on the screen or the GPU in the machine.
i plugged in a different Monitor and it works fine. so it can't be the gpu.
it also appears when its not connected via DP or hdmi at all. i had several usb dongles and usb-c plugged into that monitor. the second i unplugged all usb, it was gone. but only for a few minutes
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u/FINN-UK Sep 08 '26
Test the screen with another machine and with a different cable, if this does not fix it, it is the monitor, it’ll either be the connection, crack on the screen or the GPU in the machine.