Strange problem when using two monitors (dual view) with Xorg

["Adrian Christiansen" <adrian.christiansen@gmail.com>]

I've been trying to make my brand new second hand tft work as a second monitor to my Ibm Thinkpad T23.
The Thinkpad T23 has S3 Inc. SuperSavage IX/C SDR (xorg does support duaview with this chip).
My Thinkpad got the latest bios updates, I'm running latest X.org found in unstable (1:7.3+10).

The problem is, if I start Iceweasel on the external monitor, it will crash. You can't use the keyboard (NumLock button doesn't work), but pressing the power button will cause Linux to power off, the screens are black.
And if I display images with feh, I get weird noises, the same when I set the background. If I play movies with mplayer, I can't play them in full screen, only the original size. These problems occur only on the external screen. The internal lcd is just as usual.

I took a screenshot, and uploaded it onto flickr, the noise is seen here.
http://farm3.static.flickr.com/2117/2382485843_04abea007a_o.jpg

I've been looking around trying to find any help, but I don't really know what to look after.
Anyone heard about this problem?

This is my X.org config:
xorg.conf - Begining ------------------------------------------------------------------
# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.

# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.

#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
EndSection


Section "Module"
	Load		"xtrap"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"

	Option		"XkbModel"	"pc102"
	Option		"XkbLayout"	"se"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"

	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
EndSection


Section "InputDevice"
	Identifier	"Synaptics Touchpad"
	Driver		"synaptics"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/psaux"

	Option		"Protocol"		"auto-dev"
	Option		"HorizScrollDelta"	"0"
EndSection

Section "Device"
	Identifier	"S3 Inc. SuperSavage IX/C SDR (Primary)"

	Driver		"savage"
	BusID		"PCI:1:0:0"
	#Option		"UseFBDev"		"true"
	Screen		0
EndSection

Section "Device"
	Identifier	"S3 Inc. SuperSavage IX/C SDR (Secondary)"

	Driver		"savage"
	BusID		"PCI:1:0:0"
	#Option		"UseFBDev"		"true"
	Screen		1
EndSection

Section "Monitor"
	Identifier	"Laptop LCD"
	Option		"DPMS"

	HorizSync	28-51
	VertRefresh	60
EndSection

Section "Monitor"
	Identifier	"Eizo TFT"
	Option		"DPMS"
	HorizSync	25-80
	VertRefresh	60
EndSection

Section "Screen"

	Identifier	"Internal Screen"
	Device		"S3 Inc. SuperSavage IX/C SDR (Primary)"
	Monitor		"Laptop LCD"
	DefaultDepth	24
	SubSection "Display"
		Modes		"1024x768"

	EndSubSection
EndSection

Section "Screen"
	Identifier	"External Screen"
	Device		"S3 Inc. SuperSavage IX/C SDR (Secondary)"
	Monitor		"Eizo TFT"
	DefaultDepth	24

	SubSection "Display"
		Modes		"1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen 		0 "Internal Screen" 0 0

	Screen		1 "External Screen" LeftOf "Internal Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice	"Synaptics Touchpad"
EndSection

------------------------- End -------------------------------------------------