Is it surely just an unsupported driver?
I have very little experience with DBSD other than I could not get it to install on a laptop about 6 months ago. Laptop was an old Dell 4 GB RAM, 60GB Disk. It crashed, so I gave up and put FreeBSD on it.
So, I am not sure how stuck you are on DBSD, but if you want a GUI setup BSD based OS, then GhostBSD is pretty good.
Give it a go, before you settle on DBSD - because GhostBSD is directly using FreeBSD's OS which comes with all the relevant drivers.
What's the graphics in the laptop? AMD? Intel? Nvidia?