HP 25ES Monitor not working with MacOS Catalina

[harold17]

I upgrade to MacOS Catalina today then my monitor suddenly stops working.

It shows no signal even after I restart/reset my mac 3 times.

[Riddle_Decipher]

@harold17 I suggest you check with an alternate monitor, try starting the device with a low resolution as the update may have increase the resolution to a point where the monitor may not support it,

what message are you getting on the screen? could you take a screenshot and share it with us?

Meanwhile, try accessing the OSD menu - in display menu, go to: Input Control/Auto_switch Input.  It defaults to "OFF".

P.S: Welcome to HP Community 😉

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