Dual Head Display on 3DLabs graphics card in FC6

[feniks]

Hi,

I am fighting since a few days with correct xorg.conf setup for two monitors on one video card from 3Dlabs. So far with no success... All I can get is the same screen on both monitors even if I leave the second monitor and screen unconfigured in xorg.conf. Whenever I go to Administration->Display and turn the Dual Head on X crashes after restart with Fatal Server Error: Requested Entity already in use.

My video card is:
3DLabs Wildcat VP990 Pro 512 MB running on VESA driver in FC6 (is there a better one perhaps? I have no idea).

Monitors:
Dell FP1905 and IBM 9494

Below a copy of my xorg.conf that should work however it fails.

# Xorg configuration created by system-config-display

Section "ServerLayout"
	Identifier     "Multihead layout"
	Screen      0  "Screen0" LeftOf "Screen1"
	Screen      1  "Screen1" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
	Option	    "Xinerama" "on"
#	Option	    "Clone" "off"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "us"
EndSection

Section "Monitor"
	Identifier   "Monitor1"
	VendorName   "Monitor Vendor"
	ModelName    "LCD Panel 1280x1024"
### Comment all HorizSync and VertSync values to use DDC:
#	HorizSync    31.5 - 67.0
#	VertRefresh  50.0 - 75.0
	Option	    "dpms"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "LCD Panel 1280x1024"
	Option       "dpms"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "vesa"
	VendorName  "Videocard Vendor"
	BoardName   "3DLabs VP10 visual processor"
	BusID	    "PCI:1:0:0"
	Screen	    0
EndSection

Section "Device"
	Identifier  "Videocard1"
	Driver      "vesa"
	VendorName  "Videocard Vendor"
	BoardName   "3DLabs VP10 visual processor"
	BusID       "PCI:1:0:0"
	Screen      1
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Depth     24
		Modes    "1280x1024"
	EndSubSection
EndSection

Section "Screen"
	Identifier "Screen1"
	Device     "Videocard1"
	Monitor    "Monitor1"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1280x1024"
	EndSubSection
EndSection

Please if you have any ideas how to make Dual Head to work as Spanning Desktop post it here. Thanks for help.