I'm actually curious about how you got the XGL part installed (I've been
trying to get CentOS 5 + fglrx + XGL + beryl + dualhead as well).
I got everything but XGL and beryl working.
As for the dualhead part.
You want to not use XINERAMA or TwinView (nvidia specific) but instead use
Pairmodes (ati specific).
It basically amounts to having only 1 device and screen section (ie.
you configure everything for one single screen) and then you add to the
main Device section
Option "Mode2" "1920x1200,1600x1200" (second monitor modes)
Option "PairModes" "1440x900+1920x1200,1440x900+1600x1200"
Once X is booted you can use xrandr (command line) to switch between
various display modes (and aticonfig --lsp, aticonfig --set-powerstate=X,
aticonfig --query-monitor also come in handy).
Here's my /etc/X11/xorg.conf (this is for an ATI fglrx driven 1440x900
LCD with occasional external monitor/LCD/projector):
Section "ServerLayout"
Identifier "Layout"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
Option "Clone" "off"
Option "Xinerama" "off"
EndSection
Section "Files"
EndSection
Section "Module"
EndSection
Section "ServerFlags"
Option "AIGLX" "false"
Option "Xinerama" "false"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "pl"
EndSection
Section "Monitor"
Identifier "Monitor0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "Device0"
Driver "fglrx"
Option "DesktopSetup" "horizontal"
Option "Mode2" "1920x1200,1600x1200,1440x900,1152x864,1024x768,800x600,640x480"
Option "PairModes" "1440x900+1920x1200,1440x900+1600x1200,1440x900+1440x900,1440x900+1152x864,1440x900+1024x768,1440x900+800x600,1440x900+640x480"
Option "EnableMonitor" "lvds"
Option "MonitorLayout" "lvds,auto"
Option "Centermode" "on"
Option "DRI" "true"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "EnablePrivateBackZ" "yes"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Virtual 1920 1200
Depth 24
Modes "1440x900" "1152x864" "1024x768" "800x600"
EndSubSection
EndSection
Section "DRI"
Group 0
Mode 0666
EndSection
Section "Extensions"
Option "Composite" "false"
EndSection
---
so any help on XGL and beryl?
Thanks,
Maciej
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