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Section "ServerLayout"
    Identifier "Layout0"
    Screen 0 "Screen0" 0 0 
    Screen 0 "Screen1" RightOf "Screen0"
    Screen 0 "Screen2" LeftOf "Screen0" 
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
    Option "Xinerama" "1" #Merge Screen0, 1 and 2, and thread this as on monitor
EndSection

Section "Files"
EndSection

Section "InputDevice"
# generated from default
    Identifier "Mouse0"
    Driver "mouse"
    Option "Protocol" "auto"
    Option "Device" "/dev/psaux"
    Option "Emulate3Buttons" "no"
    Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
# generated from default
    Identifier "Keyboard0"
    Driver "kbd"
EndSection

# Each LCD panel should be defined as sepate devide
# so 3 monitors - 3 monitor section and 3 identifier
Section "Monitor"
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "Unknown"
    HorizSync 24.0 - 83.0
    VertRefresh 43.0 - 72.0
    Option "DPMS"
EndSection

Section "Monitor"
    Identifier "Monitor1"
    VendorName "Unknown"
    ModelName "Unknown"
    HorizSync 24.0 - 83.0
    VertRefresh 43.0 - 72.0
    Option "DPMS"
EndSection

Section "Monitor"
    Identifier "Monitor2"
    VendorName "Unknown"
    ModelName "Unknown"
    HorizSync 24.0 - 83.0
    VertRefresh 43.0 - 72.0
    Option "DPMS"
EndSection

# also are 3 different devices sections 1 for each 
# LCD panel
Section "Device"
    Identifier  "Device0"
    Driver      "radeon"
    VendorName  "ATI"
    BoardName   "Radeon"
    BusID       "PCI:1:0:0"
    Screen      0
EndSection

Section "Device"
    Identifier  "Device1"
    Driver      "radeon"
    VendorName  "ATI"
    BoardName   "Radeon"
    BusID       "PCI:1:0:0"
    Screen      1
EndSection

Section "Device"
    Identifier     "Device2"
    Driver       "intel"
    VendorName   "Intel"
    BoardName    "INTEL"
    BusID        "PCI:0:02:0"
    Screen       0
    option       "HotPlug" "1"
    EndSection

# 3 screen sections 1 for each monitor and device
# screen is defined as "displayed screen" so it is 
# "virtual" device, this binds GPU and LCD panel
# also this Sections are used to defined 
# one big multiscreen panel named "ServerLayout" (top of this file)
#
Section "Screen"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    
    SubSection "Display"
        Depth 24
    EndSubSection
EndSection

Section "Screen"
    Identifier "Screen1"
    Device "Device1"
    Monitor "Monitor1"
    DefaultDepth 24
    
    SubSection "Display"
        Depth 24
    EndSubSection
EndSection

Section "Screen"
    Identifier "Screen2"
    Device "Device2"
    Monitor "Monitor2"
    DefaultDepth 24
    
    SubSection "Display"
        Depth 24
    EndSubSection
EndSection



#                           | ServerLayout 0 |
#                                  |
#                __________________|___________________
#                /                 |                   \
#               /                  |                    \ 
#       |Screen0|              |Screen1|             |Screen2|
#       /       \              /       \             /       \ 
#      /         \            /         \           /         \
# |Monitor0|  |Device0|  |Monitor1|  |Device1|  |Monitor2|  |Device2|
#         ATI                      ATI                   INTEL
#
#
#
# How do I have placed monitors on my desk:
# (it is configurable via ServerLayout, and flavors "LeftOf" "RightOf")
#
# Screen2(Intel VGA) --- Screen0 (ATI) ---- Screen1 (ATI)
# LeftOf "Screen0"                          RightOf "Screen0"
#