xorg-seat1.conf

Section "ServerLayout"
    Identifier      "Seat1"
    Screen      0   "Screen3" 0 0
EndSection

Section "ServerFlags"
    Option          "DontVTSwitch" "false"
    Option          "Xinerama" "0"
EndSection

#Section "InputClass"
#    Identifier      "ignore other seats"
#    Option          "Ignore" "yes"
#EndSection

#Section "InputClass"
#    Identifier      "Seat1"
#    MatchTag        "Seat1"
#    Option          "Ignore" "no"
#EndSection

Section "Monitor"
    Identifier      "Monitor3"
    ModelName       "DENON, Ltd. DENON-AVAMP"
    HorizSync       26.0 - 81.0
    VertRefresh     24.0 - 75.0
    Option          "DPMS"
EndSection

Section "Device"
    Identifier      "Device3"
    Driver          "nvidia"
    VendorName      "NVIDIA Corporation"
    BoardName       "GeForce 210"
    BusID           "PCI:2:0:0"
    Option	        "NoLogo" "True"
    Option 	        "ProbeAllGpus" "false"
EndSection

Section "Screen"
    Identifier      "Screen3"
    Device          "Device3"
    Monitor         "Monitor3"
    DefaultDepth    24
    Option          "Stereo" "0"
    Option          "metamodes" "nvidia-auto-select +0+0"
    SubSection      "Display"
        Depth       24
    EndSubSection
EndSection