Dual Monitor on Radeon 9250

[Chris Gedrim]

Ok,

I have an ATI Radeon 9250 Pro with two 19" Samsung SyncMaster 940bw's attached (one VGA, one DVI).

After installing 8.04 both monitors were displaying in approx 1024x768 (cloned) and I wanted to get them both into their native res of 1440x900 and working as dual monitors (ie a 2880x900 desktop).

The physical layout of the screens is:



+-----------------+ +-----------------+
| | | |
| VGA | | DVI |
| | | |
+-----------------+ +-----------------+
| | | |
========= =========


After much playing around with my xorg.conf I got the screens in the right res by using the radeon driver, the layout correct so that my main monitor is the DVI and the mouse moves from DVI to VGA via the left edge.
However the displays are still both displaying the same images, but with only one mouse cursor!!

Any help would be appreciated

Chris

xorg.conf:

# xorg.conf (X.Org 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 "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "gb"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection

Section "Device"
Identifier "Card DVI"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "ATI Radeon 9250 Pro"
BusID "PCI:01:00:0"
Screen 0
EndSection

Section "Device"
Identifier "Card VGA"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "ATI Radeon 9250 Pro"
BusID "PCI:01:00:0"
Screen 1
EndSection

Section "Monitor"
Identifier "Monitor VGA"
ModelName "SYNCMASTER 940BW"
Option "DPMS"
Option "PreferredMode" "1440x900"
VendorName "SAMSUNG"
VertRefresh 56-75
EndSection

Section "Monitor"
Identifier "Monitor DVI"
ModelName "SYNCMASTER 940BW"
Option "DPMS"
Option "PreferredMode" "1440x900"
VendorName "SAMSUNG"
VertRefresh 56-75
EndSection

Section "Screen"
Identifier "Screen VGA"
Monitor "Monitor VGA"
Device "Card VGA"
EndSection

Section "Screen"
Identifier "Screen DVI"
Monitor "Monitor DVI"
Device "Card DVI"
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen VGA" LeftOf "Screen DVI"
Screen 1 "Screen DVI" 0 0
EndSection