Dual Head for nouveau (one rotate, absolute position) in both xorg.conf and KDE

xorg.cnof:

Section "Monitor"
    Identifier     "Monitor0"
    ModelName      "DELL 2209WA"
    Option         "PreferredMode" "1680x1050"
    Option         "Rotate" "left"
    Option         "Position" "0 0"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    ModelName      "Ancor Communications Inc ASUS VB191"
    Option         "PreferredMode" "1280x1024"
#    Option         "Rightof" "Monitor0"
    Option         "Position" "1050 503"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nouveau"
    Option         "Monitor-DVI-I-1" "Monitor0"
    Option         "Monitor-VGA-1"   "Monitor1"
EndSection

Section "Screen"
    Identifier     "Screen0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
        Virtual     2330 1050
    EndSubSection
    Device         "Device0"
EndSection

Section "ServerLayout"
    Identifier     "Layout0"
    Screen         "Screen0"
EndSection

Then set the correct Xrandr mode in KDE's system settings. Remember to save this as default after applying the configuration. Otherwise it will revert to original one after every log-in.