I have a Surface PRO 7 (new) and Microsoft Surface Dock. I connected from my Surface Dock to the ASUS monitor via HDMI cable which came with the Monitor using a HDMI to Mini DP connector.

When I made the first connection, I got a line at the top of the screen (See video) then it started to flash. I rebooted my Surface book, and all looked good for 30 Mins then shutdown.

Next morning all went well then, I then noticed the text starting to degrade and shimmer, then straight to the flashing screen with band at the top.

I then tried HDMI to USB-C direct to my Surface PRO all okay for around 30 mins then same thing happened again.

I called Amazon Tech support, they too me through some fault finding on the Monitor but no change. They got ASUS Tech support online, he asked me if I had another device I could connect to the monitor. I duly connect an Acer Chromebook and it worked fine no issues. The ASUS support person indicated that there may be an issue with my Surface PRO, as he said that they had many clients with Surface PRO using this monitor. In the meantime, I bought a DP to mini DP from Amazon as I thought it may be the HDMI connections I was using.

I went to PC World with my Surface PRO and they tested it on an old AOC Monitor with a HDMI to USB-C connector and it worked fine. They then ran a full diagnostic on my Surface PRO, and all was okay.

PC World did check on the Microsoft Website for Surface PRO compatible monitors and this model wasn’t on the list.

The DP to Mini DP cable arrived, I also update the firmware on my Surface Dock and I downloaded the latest driver from ASUS for the monitor. The ASUS Tech support never thought to check the driver status or even mention to check its compatibility with Surface PRO's.

Nevertheless, I attached the new DP to mini DP and it worked great no issues for over an hour. Next morning the dreaded flashing screen started and I had enough.

I have now upgraded to a BENQ Monitor, by all accounts it is compatible however it also £100 more expensive.

Amazon were extremely helpful during this process; therefore, I cannot fault them in any way.

In summary I am not saying this is a bad Monitor because it looked great when it did work but don't buy one if you have a Surface PRO, in fact be very wary of the monitor you do choose as there are lots of horror stories of "flicker" issues with people buying monitors for Surface PRO