Second Monitor Flickers When Connecting to USB


I have a secondary monitor attached to my Dell XPS model 9310 through an HDMI to USB-C connection. The secondary monitor frequently flashes black and then back on again since updating to Windows 11. This happens consistently if my charger is attached, but is also triggered by most things that involve writing to storage, attaching new devices, or waking the computer from sleep. If the charger is not detached, I can temporarily remedy the problem by closing the windows Desktop Window Manager as another solution mentioned, but it always comes back.


I updated the post showing an easily reproducible example. Doing a find and replace in Excel always causes the second screen to flicker twice as shown.

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