External Dell E2220H monitor with Display Ports errors when connected to HDMI on my new HP laptop

[KenMK]

I am trying to attach an external display to my laptop. I have a Dell E2220H display that I'd used to connect to my previous laptop with a Display Port to Display Port connection. My new laptop does not have a Display Port connection and so I bought a new cable - ESL Display Port to HDMI - as recommended by my local shop. When connected, the Dell screen reports an error "No DP signal from your device". How can I solve this issue? Do I need to buy a Display Port to USB connector to connect to one of the USB ports? Help gratefully received.

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Solution: After the advice posted, I followed-up and now understand that the uni-directional cable purchased assumed DP on my laptop to HDMI, when in fact I needed it to be the other way around. I then sourced the below from Amazon and it works perfectly...

HDMI to DisplayPort Adapter, BENFEI HDMI Input to DisplayPort Output Adapter

[banhien · Accepted solution]

@KenMK 

ESL Display Port to HDMI is the problem. I can confirm a DP to HDMI direct cable from HP machine to Dell monitor should work. I'm using the following cable from my HP notebook to my Dell monitor (older model : D2211H model).

            https://cplonline.com.au/cables/display-port-cables/alogic-5-meter-display-port-to-hdmi-cable-male-t...

My cable is only 0.5 m long, cheaper.

Regards.