X fails in 4.6 for Toshiba Satellite 460CDX (fwd)

This machine has a  Chips and Tech. 65554 video and I guess the problems
are similar to the 65555 that had problems reported in x11@ last July.
I didn't see a solution found there.  Wish I had a week to spare to play
with parameters.

dmesg and xorg.conf follow:
OpenBSD 4.6 (GENERIC) #58: Thu Jul  9 21:24:42 MDT 2009
    [email protected]:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium/MMX ("GenuineIntel" 586-class) 166 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,MMX
real mem  = 33255424 (31MB)
avail mem = 21803008 (20MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 07/22/97, BIOS32 rev. 0 @ 0xfe95b
apm0 at bios0: Power Management spec V1.2
apm0: battery life expectancy 96%
apm0: AC on, battery charge high, estimated 1:57 hours
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf97e0/48 (1 entries)
pcibios0: no compatible PCI ICU found: ICU vendor 0xffff product 0xffff
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #0 is the last bus
WARNING: can't reserve area for I/O APIC.
WARNING: can't reserve area for Local APIC.
bios0: ROM list: 0xe4000/0x9c00
cpu0 at mainbus0: (uniprocessor)
cpu0: F00F bug workaround installed
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Toshiba PCI" rev 0x27
vga1 at pci0 dev 4 function 0 "Chips and Technologies 65554" rev 0xc2
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ohci0 at pci0 dev 11 function 0 "NEC USB" rev 0x01: irq 11, version 1.0
usb0 at ohci0: USB revision 1.0
uhub0 at usb0 "NEC OHCI root hub" rev 1.00/1.00 addr 1
isa0 at mainbus0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
wdc0 at isa0 port 0x1f0/8 irq 14
wd0 at wdc0 channel 0 drive 0: <TOSHIBA MK2103MAV>
wd0: 16-sector PIO, LBA, 2067MB, 4233600 sectors
wd0(wdc0:0:0): using BIOS timings
wdc1 at isa0 port 0x170/8 irq 15
atapiscsi0 at wdc1 channel 0 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <TOSHIBA, CD-ROM XM-1502BN, 1001> ATAPI 5/cdrom removable
cd0(wdc1:0:0): using BIOS timings
sb0 at isa0 port 0x220/24 irq 5 drq 1: dsp v3.01
midi0 at sb0: <SB MIDI UART>
audio0 at sb0
opl0 at sb0: model OPL3
midi1 at opl0: <SB Yamaha OPL3>
wss0 at isa0 port 0x530/8 irq 10 drq 0: CS4231 or AD1845 (vers 4)
audio1 at wss0
pcppi0 at isa0 port 0x61
midi2 at pcppi0: <PC speaker>
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
pcic0 at isa0 port 0x3e0/2 iomem 0xd0000/65536
pcic0 controller 0: <Intel 82365SL rev 1> has sockets A and B
pcmcia0 at pcic0 controller 0 socket 0
pcmcia1 at pcic0 controller 0 socket 1
com3 at pcmcia1 function 0 "MEGAHERTZ, XJ2288, V.34 PCMCIA MODEM" port 0x2f8/8: ns16550a, 16 byte fifo
com3: probed fifo depth: 0 bytes
, irq 3pcic0: irq 9, polling enabled
biomask e945 netmask e945 ttymask fbdf
softraid0 at root
root on wd0a swap on wd0b dump on wd0b

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
	ModulePath   "/usr/X11R6/lib/modules"
	FontPath     "/usr/X11R6/lib/X11/fonts/misc/"
	FontPath     "/usr/X11R6/lib/X11/fonts/TTF/"
	FontPath     "/usr/X11R6/lib/X11/fonts/OTF"
	FontPath     "/usr/X11R6/lib/X11/fonts/Type1/"
	FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/"
	FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/"
EndSection

Section "Module"
	Load  "dbe"
	Load  "dri"
	Load  "extmod"
	Load  "glx"
	Load  "freetype"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
EndSection

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

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
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     "Linear"             	# [<bool>]
        #Option     "NoAccel"            	# [<bool>]
        #Option     "HWclocks"           	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor"           	# [<bool>]
        #Option     "STN"                	# [<bool>]
        #Option     "UseModeline"        	# [<bool>]
        #Option     "Stretch"            	# [<bool>]
        #Option     "LcdCenter"          	# [<bool>]
        #Option     "MMIO"               	# [<bool>]
        #Option     "SuspendHack"        	# [<bool>]
        #Option     "FixPanelSize"       	# [<bool>]
        #Option     "18BitBus"           	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "Rotate"             	# [<str>]
        #Option     "SetMclk"            	# <freq>
        #Option     "FPClock8"           	# <freq>
        #Option     "FPClock16"          	# <freq>
        #Option     "FPClock24"          	# <freq>
        #Option     "FPMode"             	# [<bool>]
	Identifier  "Card0"
	Driver      "chips"
	VendorName  "Chips and Technologies"
	BoardName   "65554"
	BusID       "PCI:0:4:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection