External VGA monitor with 1024x768

Discussion in 'Laptop Hardware' started by LeHans, Mar 23, 2009.

  1. LeHans

    LeHans

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    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.
     
    LeHans, Mar 23, 2009
    #1
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