External VGA monitor with 1024x768

I use my old 17" external VGA monitor with my AAO with the resolution 1024x768. To get this done, I had to change the xorg.conf (etc/X11/xorg.conf) with the command sudo mousepad /etc/X11/xorg.conf in the terminal.

Try to understand how the xorg.conf works by reading the manual before you make any changes! (man xorg.conf in the terminal)

My xorg.conf looks like this now:

Code:

# Xorg configuration created by system-config-display
Section "ServerFlags"
	Option "DontZap" "yes"
	Option "DontVTSwitch" "yes"
EndSection

Section "ServerLayout"
	Identifier     "Default Layout"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Synaptics Mouse" "AlwaysCore"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
        Option      "XkbLayout" "de"
        Option      "XkbOptions" "grp:alt_shift_toggle"
EndSection

Section "InputDevice"
	Identifier "Synaptics Mouse"
        Driver     "synaptics"
        Option     "Device" "/dev/psaux"
        Option     "Protocol" "auto-dev"
	Option	   "LeftEdge"  "1700"
  	Option	"RightEdge"     "5300"
  	Option	"TopEdge"       "1700"
  	Option	"BottomEdge"    "4200"
  	Option	"FingerLow"	"25"
  	Option	"FingerHigh"	"30"
  	Option	"MaxTapTime"	"180"
  	Option	"MaxTapMove"	"220"
  	Option	"VertScrollDelta" "100"
  	Option	"MinSpeed"	"0.09"
  	Option	"MaxSpeed"	"0.18"
  	Option	"AccelFactor"	"0.0015"
  	Option	"SHMConfig"	"on"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "IMPS/2"
	Option	    "Device" "/dev/input/mice"
	Option	    "ZAxisMapping" "4 5"
	Option	    "Emulate3Buttons" "no"
EndSection

Section "Monitor"
	Identifier  "Monitor0"
	Modeline  "1024x600" 48.96 1024 1064 1168 1312 600 601 604 622 -HSync +VSync
	Modeline  "1024x768" 115.5 1024 1056 1248 1440 768 771 781 892 -HSync -VSync
#	Option	"Above"	"Monitor1"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "intel"
#	Option      "monitor-LVDS" "Monitor0"
#	Option	    "monitor-VGA" "Monitor1"
	Option	    "Clone" "true"
	Option	"MonitorLayout"	"LVDS,VGA"
	BusID	"PCI:0:2:0"
#	Screen	0
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	Monitor	    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1024x600" "1024x768" "800x600" "640x480"
         Virtual 2048 2048
	EndSubSection
EndSection

### This is the monitor section for an external VGA with DPMS (auto modeline selection)
Section "Monitor"
        Identifier  "Monitor1"
        Option  "DPMS"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "intel"
        Option      "monitor-LVDS" "Monitor0"
        Option      "monitor-VGA" "Monitor1"
## You don't need clone mode here - cloning will be handled via xrandr
#       Option      "Clone" "true"
## Operate external VGA and internal LVDS on two seperate Pipelines
## If you want to operate both on the same Pipeline, just try "LVDS+VGA,NONE"
        Option  "MonitorLayout" "LVDS,VGA"
        BusID   "PCI:0:2:0"
#       Screen  0
EndSection


Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor     "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes    "1024x600" "1208x1024" "1024x768"
# set virtual to the resolution of the external VGA if you want to use clone mode
# if you want to have Xinerama-like setup, use "2704x1050" (extW+intW x extH)
                Virtual 2048 2048
        EndSubSection
EndSection

After changing, you have to reboot. Then open the display properties from the menu, select dektop on external display only and then select the 1024x768 resolution.