I use FREEBSD 7.0-CURRENT, and Xorg 7.3 compiled from the ports (all less than 1 week ago).
I use the AMD64 version on a Intel E2180 CPU.
My graphic card is an Intel G33 chipset.

I had to modify kernel sources to get Xorg work (G33 lines were commented out in agp_i810.c), but DRM is still not working.

Here are some logs :
stage003:~ # kldstat
Id Refs Address            Size     Name
 1    7 0xffffffff80100000 b2dc98   kernel
 2    1 0xffffffffaf641000 aa7a     fuse.ko
 3    1 0xffffffffaf64c000 4ba7     i915.ko
 4    1 0xffffffffaf651000 d5d8     drm.ko

stage003:~ # dmesg|grep drm
-> nothing

stage003:~ # grep -i drm /var/log/Xorg.0.log
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: Open failed
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: Open failed
drmOpenByBusid: Searching for BusID pci:0000:00:02.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: Open failed
drmOpenByBusid: drmOpenMinor returns -2
drmOpenDevice: node name is /dev/dri/card1
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: Open failed
[snip]
drmOpenByBusid: drmOpenMinor returns -2
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: open result is -1, (No such file or directory)
drmOpenDevice: Open failed
[drm] failed to load kernel module "i915"
(EE) [drm] drmOpen failed.

then the Intel driver reports :
(EE) intel(0): [dri] DRIScreenInit failed. Disabling DRI.


stage003:~ # cat /usr/local/etc/X11/xorg.conf
Section "ServerLayout"
        Identifier     "X.org Configured"
        Screen      0  "Screen0" 0 0
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
        RgbPath      "/usr/local/share/X11/rgb"
        ModulePath   "/usr/local/lib/xorg/modules"
        FontPath     "/usr/local/lib/X11/fonts/misc/"
        FontPath     "/usr/local/lib/X11/fonts/TTF/"
        FontPath     "/usr/local/lib/X11/fonts/OTF"
        FontPath     "/usr/local/lib/X11/fonts/Type1/"
        FontPath     "/usr/local/lib/X11/fonts/100dpi/"
        FontPath     "/usr/local/lib/X11/fonts/75dpi/"
EndSection

Section "Module"
        Load  "extmod"
        Load  "record"
        Load  "dbe"
        Load  "glx"
        Load  "GLcore"
        Load  "xtrap"
        Load  "dri"
        Load  "freetype"
        Load  "type1"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel"  "pc105"
        Option      "XkbLayout" "fr"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/sysmouse"
        Option      "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "Dell"
        ModelName    "E177FP"
        HorizSync    31-81
        VertRefresh  56-76
        ModeLine     "1280x1024" 108.0 1280 1328 1440 1688 1024 1025 1028 1066
        Option       "DPMS"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "ShadowFB"                  # [<bool>]
        #Option     "DefaultRefresh"            # [<bool>]
        #Option     "ModeSetClearScreen"        # [<bool>]
        Identifier  "Card0"
        #Driver      "vesa"
        #Driver             "i810"
        Driver      "intel"
        VendorName  "Intel Corporation"
        BoardName   "82G33/G31 Express Integrated Graphics Controller"
        BusID       "PCI:0:2:0"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
        DefaultDepth 24
        Option     "AddARGBGLXVisuals" "True"

        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes     "1280x1024"
        EndSubSection
EndSection

Section "Extensions"
        Option     "Composite" "Enable"
EndSection

Section "DRI"
        Mode 0666
EndSection