Xorg 7.3 does not start on FreeBSD 6.2

[Sastry Tumuluri]

Hi,
I have been using FreeBSD 6.2-RELEASE for sometime, with xorg-6.9.0, without
any problems.
I've tried to switch over to xorg-7.3 (from ports) using a fresh
install of FreeBSD
6.2 on a new partition.
startx fails (see error info below).

Could someone help? Thanks.

Here is some info that I thought might be relevant:
1. Using Intel D945GCCR motherboard with on-board integrated graphics adapter.
2. Installed FreeBSD 6.2 w/o any packages (used FreeBSD-from-scratch stage_1.sh
    available in the "docs", with minor changes).
3. Installed Xorg (xorg-7.3_1) from ports.
4. Used a working xorg.conf from a previous FreeBSD 6.2, older Xorg
(xorg-6.9.0),
   after changing the module path (to /usr/local/lib/xorg/modules/).
5. startx does not work...  (seee errors from Xorg.0.log below)
6. The error "(EE) GARTInit: Unable to open /dev/agpart... " is common to both
   xorg-6.9.0 as well as xorg-7.3_1. The VideoRam (7932KB) and PCI scan data
   detected is the same in both versions of xorg.
7. Older xorg (-6.9.0) has this in the log... (NOT present xorg-7.3_1's log):

(WW) I810(0): Bad V_BIOS checksum
(II) I810(0): Primary V_BIOS segment is: 0xc000
(==) I810(0): Write-combining range (0x0,0x1000) was already clear
(II) I810(0): VESA BIOS detected
(II) I810(0): VESA VBE Version 3.0
(II) I810(0): VESA VBE Total Mem: 7872 kB
(II) I810(0): VESA VBE OEM: Intel(r) 82945G Chipset Family Graphics Chip Acceler
ated VGA BIOS
(II) I810(0): VESA VBE OEM Software Rev: 1.0
(II) I810(0): VESA VBE OEM Vendor: Intel Corporation
(II) I810(0): VESA VBE OEM Product: Intel(r) 82945G Chipset Family Graphics Cont
roller
(II) I810(0): VESA VBE OEM Product Rev: Hardware Version 0.0
(II) I810(0): Integrated Graphics Chipset: Intel(R) 945G
(--) I810(0): Chipset: "945G"


# cat /var/log/Xorg.0.log
...
X.Org X Server 1.4.0
Release Date: 5 September 2007
X Protocol Version 11, Revision 0
Build Operating System: FreeBSD 6.2-RELEASE i386
...
(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
(WW) intel(0): /dev/agpgart is either not available, or no memory is available
for allocation.  Using pre-allocated memory only.
(==) intel(0): VideoRam: 7932 KB
(==) intel(0): Write-combining range (0x90100000,0x80000) was already clear
(==) intel(0): Write-combining range (0x90180000,0x40000) was already clear
(II) intel(0): Attempting memory allocation with tiled buffers and
               large DRI memory manager reservation:
(II) intel(0): Allocating 959 scanlines for pixmap cache
(EE) intel(0): Failed to allocate framebuffer. Is your VideoRAM set too low?
(II) intel(0): Attempting memory allocation with tiled buffers and
               small DRI memory manager reservation:
(II) intel(0): Allocating 959 scanlines for pixmap cache
(EE) intel(0): Failed to allocate framebuffer. Is your VideoRAM set too low?
(II) intel(0): Attempting memory allocation with untiled buffers and
               large DRI memory manager reservation:
(II) intel(0): Allocating 959 scanlines for pixmap cache
(EE) intel(0): Failed to allocate framebuffer. Is your VideoRAM set too low?
(II) intel(0): Attempting memory allocation with untiled buffers and
               small DRI memory manager reservation:
(II) intel(0): Allocating 959 scanlines for pixmap cache
(EE) intel(0): Failed to allocate framebuffer. Is your VideoRAM set too low?
(WW) intel(0): Not enough video memory.  Disabling DRI.
(II) intel(0): Allocating 959 scanlines for pixmap cache
(EE) intel(0): Failed to allocate framebuffer. Is your VideoRAM set too low?
(EE) intel(0): Couldn't allocate video memory

Fatal server error:
AddScreen/ScreenInit failed for driver 0

# pciconf -lv
...
none0 at pci0:2:0: class=0x030000 card=0xd6058086 chip=0x27728086 rev=0x02 hdr=0x00
    vendor   = 'Intel Corporation'
    device   = 'Integrated Graphics Controller'
    class    = display
    subclass = VGA
...