id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
12561	With dual monitor setup, VirtualBox Crashes when in seamless mode and try to a phsical monitor is removed. Win7-64 host, linux guest	zzxt		"How to reproduct. 
On a windows 7 64bit host with two physical monitor. 
Setup a VM with two Vmonitors, boot up the VM and login, then ctrl+L to go into seamless mode, each Vmonitor will use one physical monitor.
Then disconnect one physcial monitor (by unplugging the cable), windows 7 will detect its gone.
Then try click on anywhere inside the VM Vmonitor, it will hang, then crash. 

However, if it is not in seamless mode when removing the physical monitor, it won't crash.

I don't think the graphic cards matters, I had this issue on a few different machines with nvidia/intel graphics.

This is especially anonying on laptops conntected to an external monitor. When I put the laptop to sleep, and go somewhere and wake up again without the external monitor, the VBox would crash. 

I'm programmer, so if there's any information needed, I'm glad to help."	defect	closed	other	VirtualBox 4.3.4	duplicate	crash dual monitor		other	other