Happens on Windows 7 64b
Reproduces on all versions since 5.4.6f1 (didn't check earlier versions) including 2017.3.0b9 and 2018.1.0a3
You need to have laptop and one external monitor connected. Set external monitor as your main display (taskbar will be shown on it)

How we can reproduce it
1 Open Unity Editor, it should be opened on external monitor
2 Minimize Editor window to taskbar
3 Disconnect video cable for external monitor
4 Connect video cable for external monitor
5 Maximize Editor window from taskbar

Actual result:
Editor window is completely black

Expected result:
Editor window should be rendered in correct way