Kudzu handles this beautifully. Only the X config needed a little twiddle:
Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Unknown monitor" HorizSync 30.0 - 72.0 VertRefresh 50.0 - 130.0 Option "dpms" EndSectionand added 1024x768 to the Screen Modes section:
Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 16 SubSection "Display" Depth 16 Modes "1024x768" "800x600" "640x480" EndSubSection EndSection
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