Fichero: /etc/X11/xorg.conf

EndSection

Section "Monitor"
    Identifier     "___:ffff"
    HorizSync       30.0 - 57.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Tarjeta de vídeo genérica"
    Driver         "nv"
EndSection

Section "Screen"
    Identifier     "Default Screen"
    Device         "Tarjeta de vídeo genérica"
    Monitor        "___:ffff"
    DefaultDepth    24
    SubSection     "Display"
        Depth       1
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
    SubSection     "Display"
        Depth       4
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection