MSi Pro MP272L Monitor - Screen Going Blank When Using DisplayPort Connection

[Rebecca*]

Hi All,
I have an MSi Pro MP272L monitor which I have owned from new, It has a HDMi input and also a DisplayPort input but MSi B850 Gaming PLUS WIFI Motherboard only has a DisplayPort so I use a standard DisplayPort cable for it and it works well.

However, when I go to plug a USB device into the motherboard, the monitor will go blank for 2 or 3 seconds and then come back on.

I have tried 3 different DisplayPort cables and the problem is still there.

If I use an adaptor which converts the DisplayPort on the motherboard to a HDMi port and plug a HDMi cable into that and then into the monitor - the problem is not there, so it only seems to happen when using a the monitors DisplayPort.

Any idea what could be causing this?

 

[zerijelly]

Is the monitor connected to CPU onboard graphics? Could you specify the CPU model name?
Please set below settings in monitor's OSD menu via monitor's navi key to check:
1. Settings-"Power Button" option to "Standby"
2. Input Source-"Auto Scan" option to "OFF"

 

[Rebecca*]

Thanks for the suggestion @zerijelly, have just tried it but unfortunately the screen still goes blank when connecting the printer.

I have also just tried a cable that converts DP to HDMi rather than an adaptor and that plugs into the HDMi port on the monitor - but the issue also happens using that.

Last week I removed the motherboard and tested it on a bit of cardboard to try and rule out a possible ground/earth issue but the issue was still there.

My CPU is an AMD Ryzen 5 7600 which has integrated Radeon Graphics

 

[Rebecca*]

Quick update to this thread - I purchased a DP to DVi conversion cable today, connected my old DVi monitor to the PC and the same problem occurs, so this is not a problem with the MSi Pro MP272L monitor.