nvidia-driver 310.44 w/ -current

Could I have any pointer or suggestions to fix the following problem?

I updated to -current, May 30 and tried to start Xorg on nvidia.GeForce 650
display.
I got
"Fatal server error:
failed to create root window"  that seemingly tells nothing for fix, and I
have no idea to run xorg...

Thank you in advance.
Ken Yamada

=================== Xorg.0.log =======================
X.Org X Server 1.7.7
Release Date: 2010-05-04
X Protocol Version 11, Revision 0
Build Operating System: FreeBSD 10.0-CURRENT amd64
Current Operating System: FreeBSD tyd3.sub.tydfam.jp 10.0-CURRENT FreeBSD
10.0-CURRENT #3 r251220M: Sun Jun  2 07:22:30 JST 2013
root_at_:/usr/obj/usr/src/sys/TYD3
amd64
Build Date: 01 June 2013  06:13:09PM

Current version of pixman: 0.28.2
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Jun  1 23:07:25 2013
(++) Using config file: "/root/xorg.conf.new"
(==) ServerLayout "X.org Configured"
(**) |-->Screen "Screen0" (0)
(**) |   |-->Monitor "Monitor0"
(**) |   |-->Device "Card0"
(**) |-->Input Device "Mouse0"
(**) |-->Input Device "Keyboard0"
(==) Automatically adding devices
(==) Automatically enabling devices
(**) FontPath set to:
/usr/local/lib/X11/fonts/misc/,
/usr/local/lib/X11/fonts/TTF/,
/usr/local/lib/X11/fonts/OTF,
/usr/local/lib/X11/fonts/Type1/,
/usr/local/lib/X11/fonts/100dpi/,
/usr/local/lib/X11/fonts/75dpi/,
/usr/local/lib/X11/fonts/misc/,
/usr/local/lib/X11/fonts/TTF/,
/usr/local/lib/X11/fonts/OTF,
/usr/local/lib/X11/fonts/Type1/,
/usr/local/lib/X11/fonts/100dpi/,
/usr/local/lib/X11/fonts/75dpi/
(**) ModulePath set to "/usr/local/lib/xorg/modules"
(WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or
'vmmouse' will be disabled.
(WW) Disabling Mouse0
(WW) Disabling Keyboard0
(II) Loader magic: 0x7b6a50
(II) Module ABI versions:
X.Org ANSI C Emulation: 0.4
X.Org Video Driver: 6.0
X.Org XInput driver : 7.0
X.Org Server Extension : 2.0
(--) Using syscons driver with X support (version 2.0)
(--) using VT number 9

(--) PCI:*(0:1:0:0) 10de:0fc6:10de:0973 NVIDIA Corporation GK107 [GeForce
GTX 650] rev 161, Mem _at_ 0xfa000000/16777216, 0xc0000000/268435456,
0xd0000000/33554432, I/O _at_ 0x0000e000/128, BIOS _at_ 0x????????/65536
(II) "extmod" will be loaded. This was enabled by default and also
specified in the config file.
(II) "dbe" will be loaded. This was enabled by default and also specified
in the config file.
(II) "glx" will be loaded. This was enabled by default and also specified
in the config file.
(II) "record" will be loaded. This was enabled by default and also
specified in the config file.
(II) "dri" will be loaded. This was enabled by default and also specified
in the config file.
(II) "dri2" will be loaded. This was enabled by default and also specified
in the config file.
(II) LoadModule: "extmod"
(II) Loading /usr/local/lib/xorg/modules/extensions/libextmod.so
(II) Module extmod: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension MIT-SCREEN-SAVER
(II) Loading extension XFree86-VidModeExtension
(II) Loading extension XFree86-DGA
(II) Loading extension DPMS
(II) Loading extension XVideo
(II) Loading extension XVideo-MotionCompensation
(II) Loading extension X-Resource
(II) LoadModule: "record"
(II) Loading /usr/local/lib/xorg/modules/extensions/librecord.so
(II) Module record: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.13.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension RECORD
(II) LoadModule: "dbe"
(II) Loading /usr/local/lib/xorg/modules/extensions/libdbe.so
(II) Module dbe: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
Module class: X.Org Server Extension
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DOUBLE-BUFFER
(II) LoadModule: "dri"
(II) Loading /usr/local/lib/xorg/modules/extensions/libdri.so
(II) Module dri: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension XFree86-DRI
(II) LoadModule: "dri2"
(II) Loading /usr/local/lib/xorg/modules/extensions/libdri2.so
(II) Module dri2: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.1.0
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(II) LoadModule: "glx"
(II) Loading /usr/local/lib/xorg/modules/extensions/libglx.so
(II) Module glx: vendor="NVIDIA Corporation"
compiled for 4.0.2, module version = 1.0.0
Module class: X.Org Server Extension
(II) NVIDIA GLX Module  310.44  Wed Mar 27 15:00:45 PDT 2013
(II) Loading extension GLX
(II) LoadModule: "nvidia"
(II) Loading /usr/local/lib/xorg/modules/drivers/nvidia_drv.so
(II) Module nvidia: vendor="NVIDIA Corporation"
compiled for 4.0.2, module version = 1.0.0
Module class: X.Org Video Driver
(II) NVIDIA dlloader X Driver  310.44  Wed Mar 27 14:44:32 PDT 2013
(II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
(II) Primary Device is: PCI 01_at_00:00:0
(II) Loading sub module "wfb"
(II) LoadModule: "wfb"
(II) Loading /usr/local/lib/xorg/modules/libwfb.so
(II) Module wfb: vendor="X.Org Foundation"
compiled for 1.7.7, module version = 1.0.0
ABI class: X.Org ANSI C Emulation, version 0.4
(II) Loading sub module "ramdac"
(II) LoadModule: "ramdac"
(II) Module "ramdac" already built-in
(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
(==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) Jun 01 23:07:25 NVIDIA(0): Enabling 2D acceleration
(II) Jun 01 23:07:26 NVIDIA(0): NVIDIA GPU GeForce GTX 650 (GK107) at
PCI:1:0:0 (GPU-0)
(--) Jun 01 23:07:26 NVIDIA(0): Memory: 1048576 kBytes
(--) Jun 01 23:07:26 NVIDIA(0): VideoBIOS: 80.07.35.00.b2
(II) Jun 01 23:07:26 NVIDIA(0): Detected PCI Express Link width: 16X
(--) Jun 01 23:07:26 NVIDIA(0): Valid display device(s) on GeForce GTX 650
at PCI:1:0:0
(--) Jun 01 23:07:26 NVIDIA(0):     CRT-0
(--) Jun 01 23:07:26 NVIDIA(0):     Mitsubishi RDT241WEX (DFP-0) (connected)
(--) Jun 01 23:07:26 NVIDIA(0):     DFP-1
(--) Jun 01 23:07:26 NVIDIA(0):     DFP-2
(--) Jun 01 23:07:26 NVIDIA(0): CRT-0: 400.0 MHz maximum pixel clock
(--) Jun 01 23:07:26 NVIDIA(0): Mitsubishi RDT241WEX (DFP-0): 330.0 MHz
maximum pixel clock
(--) Jun 01 23:07:26 NVIDIA(0): Mitsubishi RDT241WEX (DFP-0): Internal Dual
Link TMDS
(--) Jun 01 23:07:26 NVIDIA(0): DFP-1: 165.0 MHz maximum pixel clock
(--) Jun 01 23:07:26 NVIDIA(0): DFP-1: Internal Single Link TMDS
(--) Jun 01 23:07:26 NVIDIA(0): DFP-2: 330.0 MHz maximum pixel clock
(--) Jun 01 23:07:26 NVIDIA(0): DFP-2: Internal Single Link TMDS
(**) Jun 01 23:07:26 NVIDIA(0): Using HorizSync/VertRefresh ranges from the
EDID for display
(**) Jun 01 23:07:26 NVIDIA(0):     device Mitsubishi RDT241WEX (DFP-0)
(Using EDID
(**) Jun 01 23:07:26 NVIDIA(0):     frequencies has been enabled on all
display devices.)
(==) Jun 01 23:07:26 NVIDIA(0):
(==) Jun 01 23:07:26 NVIDIA(0): No modes were requested; the default mode
"nvidia-auto-select"
(==) Jun 01 23:07:26 NVIDIA(0):     will be used as the requested mode.
(==) Jun 01 23:07:26 NVIDIA(0):
(II) Jun 01 23:07:26 NVIDIA(0): Validated MetaModes:
(II) Jun 01 23:07:26 NVIDIA(0):     "DFP-0:nvidia-auto-select"
(II) Jun 01 23:07:26 NVIDIA(0): Virtual screen size determined to be 1920 x
1200
(--) Jun 01 23:07:26 NVIDIA(0): DPI set to (93, 95); computed from
"UseEdidDpi" X config
(--) Jun 01 23:07:26 NVIDIA(0):     option
(--) Depth 24 pixmap format is 32 bpp
(II) Jun 01 23:07:26 NVIDIA: Reserving 3072.00 MB of virtual memory for
indirect memory
(II) Jun 01 23:07:26 NVIDIA:     access.
(II) Jun 01 23:07:26 NVIDIA(0): Setting mode "DFP-0:nvidia-auto-select"
(II) Loading extension NV-GLX
(==) NVIDIA(0): Disabling shared memory pixmaps
(==) NVIDIA(0): Backing store disabled
(==) NVIDIA(0): Silken mouse enabled
(==) NVIDIA(0): DPMS enabled
(II) Loading extension NV-CONTROL
(II) Loading extension XINERAMA
(--) RandR disabled
(II) Initializing built-in extension Generic Event Extension
(II) Initializing built-in extension SHAPE
(II) Initializing built-in extension MIT-SHM
(II) Initializing built-in extension XInputExtension
(II) Initializing built-in extension XTEST
(II) Initializing built-in extension BIG-REQUESTS
(II) Initializing built-in extension SYNC
(II) Initializing built-in extension XKEYBOARD
(II) Initializing built-in extension XC-MISC
(II) Initializing built-in extension XINERAMA
(II) Initializing built-in extension XFIXES
(II) Initializing built-in extension RENDER
(II) Initializing built-in extension RANDR
(II) Initializing built-in extension COMPOSITE
(II) Initializing built-in extension DAMAGE
(II) Initializing extension GLX

Fatal server error:
failed to create root window

Please consult the The X.Org Foundation support
 at http://wiki.x.org
 for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional
information.