id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
19203	Virtualbox Manager Crashes when moved to 2nd monitor on Linux Host.	mop		"Running Ubuntu 16.04 (fully patched), and when I attempt to move the window for the Virtualbox Manager to a second physical screen, the Manager crashes with various segfaults.  The Manager does NOT crash if moved to a second desktop workspace on the host (and the VM starts just fine).  The Manager also does NOT crash if I simply mirror the primary display (which I'll have to use for my current workaround.

Basically, no matter what I attempt, when I move any Virtualbox (6.1.0 and 6.0.14) window to a different physical screen, there is a segfault.  Some dmesg output is pasted here:

{{{
[ 2668.255651] VirtualBox[21052]: segfault at 7ffd96641fe8 ip 00007fc21b9932b6 sp 00007ffd96641ff0 error 6 in libQt5GuiVBox.so.5[7fc21b86b000+5f3000]
[ 2673.511188] device vboxnet0 left promiscuous mode
[ 2673.538944] vboxnetflt: 0 out of 69 packets were not sent (directed to host)
[ 2949.375093] vboxdrv: 0000000000000000 VMMR0.r0
[ 2949.584145] VBoxNetFlt: attached to 'vboxnet0' / 0a:00:27:00:00:00
[ 2949.584944] device vboxnet0 entered promiscuous mode
[ 2949.687535] vboxdrv: 0000000000000000 VBoxDDR0.r0
[ 2949.829857] vboxdrv: 0000000000000000 VBoxEhciR0.r0
[ 3447.396061] VirtualBoxVM[22573]: segfault at 7ffe8e46fff8 ip 00007ff3849896f2 sp 00007ffe8e470000 error 6 in libQt5WidgetsVBox.so.5[7ff3846e7000+676000]
[ 3462.001978] vboxdrv: 0000000000000000 VBoxDDR0.r0
[ 3462.149045] vboxdrv: 0000000000000000 VBoxEhciR0.r0
[ 3499.044449] VirtualBoxVM[23316]: segfault at 7fff4881fff0 ip 00007f9c9fa39c29 sp 00007fff4881ffc0 error 6 in ld-2.23.so[7f9c9fa26000+26000]
}}}
"	defect	closed	other	VirtualBox 6.1.0	duplicate			other	Linux