Igor K.
I bought Z27 monitor in HP web store, not on Amazon. I bought it because it has usb-c connection for data and charging to use as external display for my Lenovo X1 Cabron 6 Gen laptop using usb-c to usb-c. Unfortunately, the display blackouts every few seconds and shows the message that there is no connection. I downloaded and installed video driver for HP and tried several different usb-c to usb-c cables – including Apple and Belkin. With Belkin cable it drops connection less frequent than with the cable which came with monitor, but still drops. I also suspected the laptop itself, but then I tried to connect it via usb-c to usb-c to different 4K monitor and it worked perfectly and never dropped connection. Now I found in Q&A for this display on Amazon that another customer had the same problem with DP connection. I was so glad when I found this monitor because I liked a lot about it – build, picture quality, internal power supply. Too bad I had to return it. I submit similar review on HP web store site, but they didn’t publish it yet. Update - I received the email from HP. They thank me for my review but will not publish it because it did not meet all our website guidelines. I wonder what their guidelines are - not less than 4 stars for all HP products? I hoped they try to solve the problem, not to hide it from other customers.