tl drĭelete old monitor entries from Device Manager, and avoid DisplayPort. Looking in power settings, the computer is to never go to sleep and this is locked through GPOs so it says it can't be changed, which is what I hoped it would say. So today, I actually decided to look into it. Microsoft really should fix it by having a more intelligent way of remembering what monitors were connected and configured last. Of all of our windows 7 machines, there is one that goes to sleep and I can't work out why. This issue was encountered on Windows 10 version 2004, but it has apparently existed since Windows 7 or even earlier. If you've deleted all the disconnected monitors and the issue still occurs, try switching from DP to HDMI or DVI. For whatever reason, certain DisplayPort-connected monitors continue to cause Windows to exhibit the unwanted window moving/resizing behavior. The other part of the solution to this problem is to avoid DisplayPort.

Find all entries inside the Monitors section that have a grayed out or light-colored icon and delete them (in the screenshot above, that would be the first two 'CB272U' entries).

Select the View menu item, and click Show hidden devices (see above screenshot).

Open the Device Manager by right-clicking the Start button and selecting Device Manager.

In order to avoid this issue, you need to remove all the monitors that no longer exist. In both Windows 7 and Windows 10, there is a way to disable the monitor auto detection feature by changing the. Because multiple monitors are no longer detected, all windows are moved to the one 'active' monitor, and sometimes resized if that monitor's resolution is too low. In this article I will cover a few possible solutions that you can try to help resolve this from occurring so you won’t have to reorder your windows after waking your monitors up from sleep. As your PC goes to sleep and monitors are seen as disconnected, Windows doesn't know which monitors are valid any more and just chooses one - possibly the first one registered. Most of the 'fixes' were very sketchy with lots of people saying they didn't do anything, and I didn't want to resort to messing with my connectors until I'd exhausted other avenues.īy chance, I was scrolling through yet another thread of tweaks when I stumbled upon an important part of the answer by user 'st99': Windows remembers your old monitors! When you disconnect a monitor and connect another one, or sometimes install a different driver, Windows will see your monitor as a different device, but it will still keep track of the previous device. Searching online yielded many interesting results, from Registry tweaks to updating drivers to putting tape on certain HDMI pins in order to prevent monitors entering deep sleep.

Unfortunately, after replacing them, I discovered that all of my windows would move to the primary monitor and occasionally resize when my computer entered sleep mode. I just replaced my home dual monitor setup with two newer, 75Hz monitors (that, incidentally, aren't actively dying on me).

Windows 7 goes to sleep