Windows 10 2004: Microsoft warns of a new bug that makes connected displays go black

▤ Summary

Microsoft has confirmed an obscure bug affecting PCs with Windows 10 version 2004, which causes an external display to go black when users draw within Office apps. The new display bug, spotted by Bleeping Computer, hasnt been added to the Windows release health dashboard. "If you have a device running Windows 10 version 2004 with a built-in screen (such as a laptop or tablet) and a connected external display set to Duplicate your primary screen, you might see both monitors flicker and the external monitor go black if you try to draw using an Office app (such as Word)," Microsoft said. If you check in Device Manager, your graphics controller will have a warning icon next to it (a yellow triangle with an exclamation mark in it). The external display issue adds to the pile of problems discovered since Microsoft released the Windows 10 2004 feature update to mainstream users on May 27.

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