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Having a single ramdak doesn't prevent you from using dual monitors.
With the Radeon driver, to get dual-head and 3D acceleration you can't use xinerama, you have to use the MergedB option. The other thing, is that if you want 3D opengl acceleration and dual monitor support, the radeon driver supports a maximum total resolution of 2048. If your maximum resolution is any higher than this, you'll get 3D opengl on the first 2048 pixels only.
Here's a working xorg.conf, this one will work with all Radeon video cards supported by the raeon driver, that is r200, r300 up to the x850 video cards.
Note that you might need to adjust the BusID line to what you have in your xorg.conf file.
BTW, I tested the above xorg.conf file with a Radeon 9200, 8500 and 9600Pro on Fedora Core 5 and 6 and it work flawlessly with direct rendering enabled and dual monitor functional.
With the Radeon driver, to get dual-head and 3D acceleration you can't use xinerama, you have to use the MergedB option. The other thing, is that if you want 3D opengl acceleration and dual monitor support, the radeon driver supports a maximum total resolution of 2048. If your maximum resolution is any higher than this, you'll get 3D opengl on the first 2048 pixels only.
Here's a working xorg.conf, this one will work with all Radeon video cards supported by the raeon driver, that is r200, r300 up to the x850 video cards.
Note that you might need to adjust the BusID line to what you have in your xorg.conf file.
Code:
Section "ServerLayout"
Identifier "Dual head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
FontPath "unix/:7100"
EndSection
Section "Module"
Load "extmod"
Load "v4l"
Load "dri"
Load "glx"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "ca(fr)"
EndSection
Section "Monitor"
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
### Comment all HorizSync and VertSync values to use DDC:
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "Radeon generic"
Option "MergedFB" "true"
Option "ColorTiling" "on"
Option "AddARGBGLXVisuals" "True"
Option "MonitorLayout" "CRT,CRT"
Option "CRT2HSync" "30-54"
Option "CRT2VRefresh" "50-110"
Option "CRT2Position" "RightOf"
Option "MergedXinerama" "true"
Option "PanelSize" "1024x768"
BusID "PCI:2:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "True"
EndSection
Section "DRI"
Group 0
Mode 0666
EndSection
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