I just got Ati drivers and Xinerama working perfect. i know i and alot of other have had problems with this on 9.04 so i am going to tell you how i did it hopefully it will help.
start from the beging remove all signs of the Ati driver, and delete all directorys and files with in them.
now go to the Ati site and download and install the drivers manually. use there install instructions. go all the way down tell it says you are done.
next step go to System > Prefer > Display and uncheck mirror screens.
then you are going to have to disable RandR 1.2
Edit /etc/ati/amdpcsdb
In the section labeled [AMDPCSROOT/SYSTEM/DDX]
add this:
Code:
EnableRandR12=Sfalse
Also, in /etc/X11/xorg.conf in the "Device" section add:
Code:
Option "EnableRandR12" "false"
restart X and now it is time to configure your xorg.conf file the rest of the way. Here is what mine looks like. * note for a min turn Xinerama "off" untill you restart x after this step
Code:
# 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.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# 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 "ServerLayout"
Identifier "aticonfig Layout"
Screen 0 "aticonfig-Screen[0]-0" 0 0
Screen "aticonfig-Screen[1]-0" RightOf "aticonfig-Screen[0]-0"
Option "Clone" "off"
Option "Xinerama" "on"
Option "AIGLX" "on"
EndSection
Section "Files"
EndSection
Section "Module"
Load "dbe"
Load "freetype"
Load "extmod"
Load "glx"
Load "dri"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[1]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
Option "EnableRandR12" "false"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "on"
Option "UseFastTLS" "2"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "aticonfig-Device[1]-0"
Driver "fglrx"
Option "EnableRandR12" "false"
Option "UseFastTLS" "2"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]-0"
Device "aticonfig-Device[0]-0"
Monitor "aticonfig-Monitor[0]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024" "1024x768"
EndSubSection
EndSection
Section "Screen"
Identifier "aticonfig-Screen[1]-0"
Device "aticonfig-Device[1]-0"
Monitor "aticonfig-Monitor[1]-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024" "1024x768"
EndSubSection
EndSection
Section "DRI"
Group "Video"
Mode 0666
EndSection
Section "Extensions"
Option "RENDER" "Enable"
Option "DAMAGE" "Enable"
Option "Composite" "Enable"
EndSection
now after you restart X again go to your Amdcccle config screen and enable big desktop, when that is done you can go back to your xorg.conf file and turn Xinerama "on". and that should be it.
Let me know if this helps anyone or if anyone needs alittle more info
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