Xorg installation all screwed: how do I wipe out and start fresh?

[Thomas Mueller]

I tried to go back from the new Xorg, which just crashed the system and required Reset button, to the older.  But now everything is messed up, and how do I wipe it all out and start fresh without having to rebuild all ports including applications like Mozilla Seamonkey, etc?

Or do I have to clean out all packages and rebuild all ports?

I tried 

portmaster x11-drivers/xorg-drivers

and still have a tangled mess.

Maybe only the drivers need to be rebuilt, but how do I force that?

I earlier ran

portmaster --force-config x11/xorg

My /etc/make.conf is


PORTSDIR=/BETA1/usr/ports
PACKAGES=/usr/packages
WRKDIR=${.CURDIR}/work9amd64
# WITH_NEW_XORG=yes
# WITH_KMS=yes
WITH_PKGNG=yes
# added by use.perl 2012-11-05 10:31:00
PERL_VERSION=5.16.2
OPTIONS_SET.mpop=GNUTLS NLS

and latest /var/log/Xorg.0.log is



X.Org X Server 1.7.7
Release Date: 2010-05-04
X Protocol Version 11, Revision 0
Build Operating System: FreeBSD 9.1-STABLE amd64 
Current Operating System: FreeBSD amelia2 9.1-STABLE FreeBSD 9.1-STABLE #14 r245542: Tue Jan 22 03:00:31 UTC 2013     root at amelia2:/usr/obj/usr/src/sys/SANDY amd64
Build Date: 11 February 2013  03:39:53AM
 
Current version of pixman: 0.24.2
	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: Mon Feb 11 11:13:33 2013
(II) Loader magic: 0x7bd3c0
(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:*(0:0:2:0) 8086:0122:1462:7676 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller rev 9, Mem @ 0xfe000000/4194304, 0xc0000000/268435456, I/O @ 0x0000f000/64, BIOS @ 0x????????/65536
List of video drivers:
	ati
	radeon
	radeonhd
	i740
	openchrome
	intel
	i128
	fbdev
	vesa
(II) LoadModule: "ati"
(II) Loading /usr/local/lib/xorg/modules/drivers/ati_drv.so
(II) Module ati: vendor="X.Org Foundation"
	compiled for 1.10.6, module version = 6.14.3
	Module class: X.Org Video Driver
	ABI class: X.Org Video Driver, version 10.0
(EE) module ABI major version (10) doesn't match the server's version (6)
(II) UnloadModule: "ati"
(II) Unloading /usr/local/lib/xorg/modules/drivers/ati_drv.so
(EE) Failed to load module "ati" (module requirement mismatch, 0)
(II) LoadModule: "radeon"
(II) Loading /usr/local/lib/xorg/modules/drivers/radeon_drv.so
dlopen: /usr/local/lib/xorg/modules/drivers/radeon_drv.so: Undefined symbol "RegionEmptyData"
(EE) Failed to load /usr/local/lib/xorg/modules/drivers/radeon_drv.so
(II) UnloadModule: "radeon"
(EE) Failed to load module "radeon" (loader failed, 7)
(II) LoadModule: "radeonhd"
(II) Loading /usr/local/lib/xorg/modules/drivers/radeonhd_drv.so
dlopen: /usr/local/lib/xorg/modules/drivers/radeonhd_drv.so: Undefined symbol "RegionEmptyData"
(EE) Failed to load /usr/local/lib/xorg/modules/drivers/radeonhd_drv.so
(II) UnloadModule: "radeonhd"
(EE) Failed to load module "radeonhd" (loader failed, 7)
(II) LoadModule: "i740"
(II) Loading /usr/local/lib/xorg/modules/drivers/i740_drv.so
dlopen: /usr/local/lib/xorg/modules/drivers/i740_drv.so: Undefined symbol "RegionEmptyData"
(EE) Failed to load /usr/local/lib/xorg/modules/drivers/i740_drv.so
(II) UnloadModule: "i740"
(EE) Failed to load module "i740" (loader failed, 7)
(II) LoadModule: "openchrome"
(II) Loading /usr/local/lib/xorg/modules/drivers/openchrome_drv.so
dlopen: /usr/local/lib/xorg/modules/drivers/openchrome_drv.so: Undefined symbol "RegionEmptyData"
(EE) Failed to load /usr/local/lib/xorg/modules/drivers/openchrome_drv.so
(II) UnloadModule: "openchrome"
(EE) Failed to load module "openchrome" (loader failed, 7)
(II) LoadModule: "intel"
(II) Loading /usr/local/lib/xorg/modules/drivers/intel_drv.so
dlopen: /usr/local/lib/xorg/modules/drivers/intel_drv.so: Undefined symbol "RegionEmptyData"
(EE) Failed to load /usr/local/lib/xorg/modules/drivers/intel_drv.so
(II) UnloadModule: "intel"
(EE) Failed to load module "intel" (loader failed, 7)
(II) LoadModule: "i128"
(II) Loading /usr/local/lib/xorg/modules/drivers/i128_drv.so
dlopen: /usr/local/lib/xorg/modules/drivers/i128_drv.so: Undefined symbol "xf86ScreenKeyRec"
(EE) Failed to load /usr/local/lib/xorg/modules/drivers/i128_drv.so
(II) UnloadModule: "i128"
(EE) Failed to load module "i128" (loader failed, 7)
(II) LoadModule: "fbdev"
(II) Loading /usr/local/lib/xorg/modules/drivers/fbdev_drv.so
(II) Module fbdev: vendor="X.Org Foundation"
	compiled for 1.10.6, module version = 0.4.2
	ABI class: X.Org Video Driver, version 10.0
(EE) module ABI major version (10) doesn't match the server's version (6)
(II) UnloadModule: "fbdev"
(II) Unloading /usr/local/lib/xorg/modules/drivers/fbdev_drv.so
(EE) Failed to load module "fbdev" (module requirement mismatch, 0)
(II) LoadModule: "vesa"
(II) Loading /usr/local/lib/xorg/modules/drivers/vesa_drv.so
(II) Module vesa: vendor="X.Org Foundation"
	compiled for 1.10.6, module version = 2.3.0
	Module class: X.Org Video Driver
	ABI class: X.Org Video Driver, version 10.0
(EE) module ABI major version (10) doesn't match the server's version (6)
(II) UnloadModule: "vesa"
(II) Unloading /usr/local/lib/xorg/modules/drivers/vesa_drv.so
(EE) Failed to load module "vesa" (module requirement mismatch, 0)
(II) Primary Device is: PCI 00 at 00:02:0
No devices to configure.  Configuration failed.

Tom