Actually the machines were unresponsive. I suspect that the KVM seems to have caught some signals.
The image used was GhostBSD4.0-RELEASE-i386 and md5 matched.
I have now turned off the splash screen in loader.conf to acquire more information. Directly connecting kbd,mouse,monitor had these results.PC-1
(Actually an old ASUS notebook with Radeon X1700) usb-boot
Loadding extension GLX
(II) [KMS] Kernel modesetting enabled.
KLD radeonkms.ko: depends on drmn - not available or version mismatch
Please consult the X.Org Foundation Support at http://wiki.x.org
--abridged: check the log file at "/var/log/Xorg.0.log ..."
(EE) Server terminated with error (1). Closing log file.
Error .. Permission denied: "/etc/X11/xorg.conf.new"
(VIA M700 3 years old) using usb-boot
Initialising build-in extension DRI2
Loading extension GLX
(hung - keyboard unresponsive)
I'll need to investigate further. On the fourth attempt, the mouse was responsive until the system hung. PC-3
(more than 5 year old) usb-boot
Runs great! PC-4
Virtualbox 4.3.26 (using the same image as usb; created a vhd via gpart then dump/restore, changed fstab)