Fix vram size for hang starting virtualbox

[zchee]

When OS X guest, Recommended vram size of Virtualbox is at 33MB or more.
In the case of 16MB, then hang immediately after starting Virtualbox.

> sw_vers
ProductName:    Mac OS X
ProductVersion: 10.11.1
BuildVersion:   15B42

> VBoxManage --version
5.0.10r104061

[mattieb]

That's odd. When building out an OS X box using the VirtualBox GUI, I got 16 MB VRAM, which has been working well for me.

Are you using HiDPI or video acceleration?

[zchee]

@Zigg
Not using HiDPI or video acceleration.
And that odd too!

Now, tested,

["modifyvm", "{{.Name}}", "--vram", "9"],

but works fine 😵
I don't know what's happened...

I retry vram 16, and I am looking for a reproducibility.

[zchee]

Hmm...
No longer be reproduced.

It seems my OS X was strange only at that time.
There was no need for PR.
Close.