How to disable DisplayPort Auto Monitor Detection in Windows 10

My Windows 10 computer is connnected with three monitors. They are hooked up through two separate video cards and plugged into their own power strip. The main display is for study by displayport and a second one is on HDMI at 144Hz for gaming. When the save power feature turns off the monitor off completely, the content is shuffled to the second one and then shuffled all back. How can I resolve the problem?

When the Windows 10 detects that a monitor is disconnected, all content will be reverts to the other monitors that is present. It is very annoying for many users. You could try any of the methods below to disable DisplayPort Auto Monitor Detection feature.

Note: If your monitor is an Asus monitor, turn off Deep Sleep in the DDC/CI option. However, it works first and then still shift the windows AND icons to the active screen.
It may be causesd by the AMD External Events Utility service.
* Right click on your taskbar, select Task Manager. Go to the Services tab, find the aforementioned service, right click on it and select the Stop option. But disabling it will affects other programs, such as Steam interface window.
The hardware solution
* A DP to DVI adapter Akasa AK-CBDP15-20BK active adapter can fix the issue. I do that with two 2560×1440 60Hz monitors and they works fine.
* I have setup the extended desktop for two monitors. The first one is with Displayport to my GTX970. The second monitor is connect to GTX970 by Displayport and also with a DVI cable to GTX970. The DVI signal is 3rd one. Once I turn off the main display, the icon and windows don’t move to the 2nd screen.

test2

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