22" external display

hihi

I just followed z0s0's instructions on editing my xorg file to support a different external monitor resolution. It has worked for me *(thanks z0s0), but I have a few questions about this process,.

1. The resolution setting is correct but the image is a little fuzzy- it lacks the clarity that the monitor should have. How is this affected? is it related to the modeline entries I used?
2. Is there a way to have the display resolution of the AAO maintain its 1024x600 output while the monitor output remains at 1680x1050?
3. How might I add more display options to support different device resolutions (eg. projectors) without editing my xorg everytime? eg. add them into the display list in system settings (just another xorg entry?)

Any help would be appreciated

Because some ppl are likely to stumble on this thread looking for 22" monitor support I'll just paste in my /etc/X11/xorg.conf as it looks 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
       Screen      1  "Screen1" 1 0
       InputDevice    "Mouse0" "CorePointer"
       InputDevice    "Synaptics Mouse" "AlwaysCore"
       InputDevice    "Keyboard0" "CoreKeyboard"
    EndSection

    Section "InputDevice"
       Identifier  "Keyboard0"
       Driver      "kbd"
       Option       "XkbModel" "pc105"
            Option      "XkbLayout" "us(euro)"
            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"     "5820"
    #"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  "1680x1024"
    #   Option   "Above"   "Monitor1"
    EndSection

    Section "Monitor"
       Identifier  "Monitor1"
       Modeline "1680x1024_60.00"  147.14  1680 1784 1968 2256  1050 1051 1054 1087  -HSync +Vsync
    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
       Option "MigrationHeuristic" "greedy"
    EndSection

    Section "Screen"
       Identifier "Screen0"
       Device     "Videocard0"
       Monitor       "Monitor0"
       DefaultDepth     24
       SubSection "Display"
          Viewport   0 0
          Depth     24
          Modes    "1024x600"
          #Virtual   1024 768
       EndSubSection
    EndSection

    Section "Screen"
       Identifier "Screen1"
       Device     "Videocard0"
       Monitor       "Monitor1"
       DefaultDepth     24
       SubSection "Display"
          Viewport   0 0
          Depth     24
          Modes    "1680x1024_60.00"
       EndSubSection
    EndSection

 

1. My guess is because you've got the resolution set up wrong in your xorg file, it should be 1680x1050 rather than 1680x1024.