Loading drm modules causes screen to go blank

[Sevan / Venture37]

Hi,
I patched my FreeBSD-HEAD (r234601M) with the all.14.4.patch & built the 
trunk xorg-server early today on my ThinkPad X61s, attempting to startx 
or manually load the i915drm module results in a blank screen,
the relevant info on my configuaration is up on pastebin

Xorg.0.log
http://pastebin.com/mQGyadUV

pciconf -lvb
http://pastebin.com/ejVzcvCr

dmesg
http://pastebin.com/fjLtTDWQ

messages from drm in message buffer
http://pastebin.com/gFFZEN0g

pkg_info
http://pastebin.com/kbd0bu33

Any advice greatly appreciated on what to do next.

Sevan