Question Two inputs into one display

Oct 22, 2023
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Until recently I had dual monitors working fine, a Philips 275B1 and a Dell monitor.

On the Dell I had two inputs, display port connected to the PC and HDMI connected to a security DVR for viewing security cameras. The display defaulted to the display port input, and when I wanted to view the cameras I changed the monitor to show the HDMI input.

The Dell monitor died, so I purchased another Philips 275B1. I have the monitor set up in exactly the same way, but now when the computer goes to sleep the monitor will change to HDMI and display the cameras. I have to physically turn the monitor off.

The same thing happens when I turn the computer off, the default input on the monitor changes back from display port and shows the HDMI camera screen until I physically turn it off.

I've tried tech support at Philips to no avail, would anybody have any suggestions?


TIA.