id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
19632	"6.1.8 GA provokes ""The parent session seems to be non-X11"""	Mark Filipak		"Host: Win10-1803

Guest: Linux Mint 18.3

Notification: ""VBoxClient: The parent session seems to be non-X11. Exiting...""

Symptom: 800x600 VBox window clips 3840x1986 Linux Mint desktop making it unusable.

Workaround: Regessed to GA 6.1.8
"	defect	closed	guest additions/x11/graphics	VirtualBox 6.1.8	invalid			Linux	Windows