Question HP Z27s Monitor has static horizontal black lines

Jul 8, 2020
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Hi,

I have a HP Z27s 27" monitor which has permanent static, thin, black horizontal lines across the entire monitor. I have isolated the problem to the monitor itself as even without any laptops connected, the black lines still exist in the native display. I tried to restore to factory settings and unplugged from the power for a period of time.

Does anyone have any ideas of how to fix this? Unfortunately this monitor is taken from work for WFH so I don't have the warranty or original receipt.

Thanks