Windows 11 Upgrade Guide
Which input to the display are you using?
There should only be an HDMI cable and a power cable.
Have you used the onscreen display of the HP 25es monitor to select the HDMI input that you are using to connect the display to the PC? Select the input control selection and choose HDMI.
"You can access and make adjustments in the OSD menu using the buttons on the bottom side of the monitor's front bezel. "
When you turn on the power switch to the monitor do you get any message on the monitor?
If you do not get any message at all I would contact HP support. Number is in the manual of the monitor.
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