On 1-Dec-07, at 10:44 PM, Donnie Berkholz wrote:

With the new randr-1.2 that's in all of the 2.x intel drivers, multiple
monitors are handled a bit differently. You just have a single device
section that refers to both of them. Take a look at
http://www.intellinuxgraphics.org/dualhead.html for details.

Thank you so much for your help. However, I'm slow at this. Sorry. :- ( Here's my updated xorg.conf file:

Section "Device"
        Identifier     "Intel 945G "
        Driver         "intel"

        Option "monitor-LVDS" "Builtin"
        Option "monitor-TMDS-1" "External Monitor"

EndSection

Section "Monitor"
        Identifier      "Builtin"
        Option "PreferredMode" "1280x800"
EndSection

Section "Monitor"
        Identifier      "External Monitor"
        VendorName      "DEL"
        ModelName       "DELL 2407WFP"

        Option "PreferredMode" "1920x1200"
        Option "ReducedBlanking"
EndSection

Section "Screen"

        Identifier    "Default Screen"
        Device        "Intel 945G"
        Monitor       "Builtin"

        DefaultDepth  24

        SubSection "Display"
                Depth         24
                Modes         "1280x800"  "1024x768"   "640x480"
                Virtual       2048 2048
        EndSubSection

EndSection

Section "Screen"

        Identifier    "External Screen"
        Device        "Intel 945G"
        Monitor       "External Monitor"

        DefaultDepth  24

        SubSection "Display"
                Depth         24
Modes "1920x1200" "1600x1200" "1680x1050" "1024x768" "640x480"
                Virtual       2048 2048
        EndSubSection

EndSection

Section "ServerLayout"
        Identifier "Dual Layout"
        Screen 0 "Default Screen"
        Screen 1 "External Screen" Above "Built-in Screen"

        Option "Clone" "On"
        #Option "Xinerama" "On"

        InputDevice "Generic Keyboard"
        InputDevice "Configured Mouse"
EndSection

And this is the output:

(WW) intel: More than one matching Device section found: Intel 945G
(WW) intel: No matching Device section for instance (BusID PCI:0:2:1) found

I get the same default screen resolutions, although xrandr now reports that screen 0 has a maximum size of 2048x2048. I think I'm on the right track... and thanks again for replying to my question.
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