Dual head does not work after FC4 to FC6 upgrade

[Leon Pollak]

Hello.

I shall be very very thankful for any help - my dual head setup
stopped working after FC4 to FC6 upgrade.
The FC6 installation did not succeed to run X and I did it manually.
The old xorg.conf from FC4 did not work: each card separately works
fine, but when I try to run both, one of them always produces the
black screen.
My HW config:
[root at leonp ~]# lspci|grep ATI
01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128
PF/PRO AGP 4x TMDS
02:07.0 VGA compatible controller: ATI Technologies Inc Radeon RV100
QY [Radeon 7000/VE]
------------------------------
The xorg.conf is:
# Xorg configuration created by system-config-display

Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
Option "Xinerama" "on"
# Option "Clone" "on"
EndSection

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

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "no"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
HorizSync 28.0 - 80.0
VertRefresh 48.0 - 75.0
Option "DPMS"
EndSection

Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor 1024x768"
HorizSync 31.5 - 57.0
VertRefresh 50.0 - 70.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "r128"
BusID "PCI:1:0:0"
EndSection

Section "Device"
Identifier "Videocard1"
Driver "radeon"
VendorName "Videocard Vendor"
BoardName "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
BusID "PCI:2:7:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1280x960" "1280x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1024x768"
EndSubSection
EndSection
--------------------------------------------------------------
Attached are 3 Xorg.log files: 0-the first card only (by commenting in
the "ServerLayout" section), 1-the second only, 01-both. In the case
of both, the second card is working properly, the first screen is
black.


Please, help!!!
A lot of thanks ahead.
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