IDE window not displaying or redrawing on external monitors
Answered
Hi, my IDE is not displaying on EXTERNAL MONITORS. It was working fine previously but has stopped. I've rebooted, reinstalled my graphics drivers and reinstalled PHPStorm.
Any ideas?

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It's a Windows problem: https://youtrack.jetbrains.com/issue/WI-37653
Please try enabling Aero, and if it helps, remove KB4034664.
https://www.neunbeere.de/blog/2017/08/graphics-bug-in-windows-7-after-installing-august-2017-security-updates/
This website fixed my issues