Dual Monitors with Apple Cinema Display and Macbook Pro

[Bagration]

I have been able to get my cinema display working as second monitor with my macbook pro and fglrx. During startup the monitor mirrors what is on the laptop display, but once X starts it goes black. The light that normally indicates that the monitor is being used remains on. I ran the following command:

aticonfig --initial=dual-head --screen-layout=above

which gave me the following 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 "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen" 0 0
Screen "aticonfig-Screen[1]" Above "Default Screen"
InputDevice "Synaptics Touchpad"
EndSection

Section "Files"
EndSection

Section "Module"
Load "glx"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "XkbVariant" "mac"
Option "XkbOptions" "lv3:ralt_switch"
EndSection

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

Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "LeftEdge" "10"
Option "RightEdge" "1200"
Option "TopEdge" "10"
Option "BottomEdge" "370"
Option "FingerLow" "10"
Option "FingerHigh" "20"
Option "MaxTapTime" "180"
Option "MaxTapMove" "220"
Option "SingleTapTimeout" "100"
Option "MaxDoubleTapTime" "180"
Option "LockedDrags" "off"
Option "MinSpeed" "1.10"
Option "MaxSpeed" "1.30"
Option "AccelFactor" "0.08"
Option "MultiFingerButton" "2"
Option "RTCornerButton" "0"
Option "RBCornerButton" "0"
Option "LTCornerButton" "0"
Option "LBCornerButton" "0"
Option "VertScrollDelta" "20"
Option "HorizScrollDelta" "50"
Option "HorizEdgeScroll" "0"
Option "VertEdgeScroll" "0"
Option "VertTwoFingerScroll" "1"
Option "HorizTwoFingerScroll" "1"
Option "SHMConfig" "on"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Monitor"
Identifier "aticonfig-Monitor[1]"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

Section "Device"
Identifier "Configured Video Device"
Driver "fglrx"
Option "EnableMonitor" "lvds"
BusID "PCI:1:0:0"
EndSection

Section "Device"
Identifier "aticonfig-Device[1]"
Driver "fglrx"
BusID "PCI:1:0:0"
Screen 1
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
DefaultDepth 24
EndSection

Section "Screen"
Identifier "aticonfig-Screen[1]"
Device "aticonfig-Device[1]"
Monitor "aticonfig-Monitor[1]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection