﻿id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
18570	Powering off Guest without Graphics Controller causes Unresponsive Behavior -> fixed in 6.0.8 and 5.2.30	TurtAlgo		"I have set the following options on Virtual Machine(s):

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Graphics Controller: None[[BR]]
Graphics Memory: 0 MB

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Powering off a machine will cause VirtualBox 6.0.6 to behave erratically and unresponsively. Configuring the guest with 5MB Video Memory and a Graphics Controller will allow proper function.

VirtualBox starts the guest again, and reports a memory error, where I have to end the process to fix this issue.
I attempted to power off a couple dozen Headless Virtual Machines at once and my Host hung from attempting to restart the Virtual Machines. They also opened up the interface.

I am also having an issue where clicking ""Show"" on a guest without a Graphics Controller causes issues.
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Downgraded to VirtualBox 6.0.4 to fix this issue on a production server. Multiple Virtual Machines power off as expected.

Perhaps configuring a guest with ""invalid settings"" may be the issue, but I have had no issues with running a guest without a graphics controller. I am running a full box with 200+ machines where I believe there may be unnecessary overhead with a Graphics Adapter."	defect	closed	VM control	VirtualBox 6.0.6	fixed			all	Windows
