Same thing on my ThinkPad X1 Tablet. My graphics card according to Windows Device Manager is Intel HD Graphics 515, although I'm not sure that that's the problem. Checked /var/log for the X log, don't remember now if X recognized and loaded the drivers for the card. It did say something about Screen0 being absent, which I find strange since I didn't have that problem with the previous versions of Ghost.
If I'm not mistaken the graphics card on your TP is the FireGL 5200.
I'll investigate a bit further and post here when I do manage to get X running, might even re-download the image. I've already tried writing the image I have a second time.
In case you're wondering how to view the log file, use ghostbsd as login, blank password. Then type in, without terminating with the Enter key yet,
and hit the [Tab] key immediately after the X (no space bar! -- apologies if you already know this, can't assume other users' levels of proficiency with the shell). I suspect you'll find something similar to the error on my TP regarding Screen0
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