Section "ServerLayout"
 identifier "default"
 screen 0 "screen0" 0 0
Endsection

Section "ServerFlags"
#  Option    "Xinerama" "true"
EndSection

Section "Monitor"
  Identifier     "Monitor0"
  # Preferred resolution for the monitor
  Option         "PreferredMode"  "1680x1050" 
  Option         "Primary"    "True"
EndSection

Section "Monitor"
  Identifier     "Monitor1"
  Option         "PreferredMode"  "1680x1050" 
  Option         "RightOf" "Monitor0" 
  Option         "Primary"    "False"
EndSection

Section "Device"
  Identifier     "Device0"
  Driver         "nouveau"
  #assigns the output DVI-I-1 to Monitor0
  Option	 "monitor-DVI-I-1" "Monitor0" 
  #assigns the output DVI-I-2 to Monitor1
  Option         "monitor-DVI-I-2" "Monitor1" 
EndSection

Section "Screen"
  Identifier          "screen0"
  Device              "Device0"
  Monitor             "Monitor0"
  DefaultDepth       24
  SubSection "Display"
    Depth           24
    Modes           "1680x1050"
    #note the lack of quotes, this line sets the 'maximum' resolution
    Virtual          3360 1050 
    EndSubSection
EndSection