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Is it possible that this adapter:

enter image description here

CAN'T transfer the video from HDMI port on my laptop to DisplayPort on the monitor like this?

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https://www.amazon.de/Icy-Box-IB-AC508-DisplayPort-3840x2160/dp/B00KIRY8GC/ref=sr_1_9?s=computers&ie=UTF8&qid=1494767338&sr=1-9&keywords=icy+box+dp+adapter

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    While it is possible, it would depend on the individual adapter if it was defective. Do you have one that isn't working? – K.A.Monica May 14 '17 at 13:16
  • I just bought one and I have a Laptop with HDMI and a monitor with DisplayPort input....and there is no image on the monitor! It seems like this works only in one direction DisplayPort to HDMI and not the other way around! – lewis4u May 14 '17 at 13:17
  • May sound stupid, but is the monitor plugged in/turned on? – K.A.Monica May 14 '17 at 13:18
  • Of course...I have a Dell U2312HM and all is set properly – lewis4u May 14 '17 at 13:19
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    I would actually expect this to not work. DisplayPort output is backwards compatible to HDMI, but HDMI is not forwards compatible to DisplayPort. Your adaptor is in the wrong direction for the connection to work and you probably need an active adaptor. amazon.co.uk/StarTech-HDMI-DisplayPort-Active-Converter/dp/… – Mokubai May 14 '17 at 14:01
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Setup = Laptop HDMI out --> HDMI to HDMI cable --> HDMI to DP adapter --> Monitor DP in = Doesn't Work!

The computer HDMI cannot send a signal to a monitor DP. Computer DP can always send a signal to a monitor HDMI. That is why you see so many DP to HDMI cables. To do computer HDMI to monitor DP, you would have to invest in one of these converters: https://www.newegg.com/Product/Product.aspx?Item=N82E16815158264

source: http://en.community.dell.com/support-forums/peripherals/f/3529/t/19567621

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Probably it is a displayport-hdmi conversion cable. It works only in one direction so not from your laptop/computer to the external screen, although the connections do fit. The problem is that the converter works not to the other direction. Then you need another cable whitch is a lot more expensive (about 50-60 Euro).

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