nvidia Ubuntu下无法检测第二个显示器的问题

nvidia multi-monitor configure under Ubuntu

原来第二个显示器可以检测出来,后来拿走后就只能检测出来640×480了,经过复杂的过程发现需要在device段加入:

Option         “UseDisplayDevice” “DFP”

QUMI投影也可用了。

:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 270.41.06  (buildmeister@swio-display-x86-rhel47-08.nvidia.com)  Mon Apr 18 15:14:00 PDT 2011
Section “ServerLayout”
    Identifier     “Layout0”
    Screen      0  “Screen0” 0 0
    InputDevice    “Keyboard0” “CoreKeyboard”
    InputDevice    “Mouse0” “CorePointer”
EndSection
Section “Files”
EndSection
Section “InputDevice”
    # generated from default
    Identifier     “Mouse0”
    Driver         “mouse”
    Option         “Protocol” “auto”
    Option         “Device” “/dev/psaux”
    Option         “Emulate3Buttons” “no”
    Option         “ZAxisMapping” “4 5”
EndSection
Section “InputDevice”
    # generated from default
    Identifier     “Keyboard0”
    Driver         “kbd”
EndSection
Section “Monitor”
    Identifier     “Monitor0”
    VendorName     “Unknown”
    ModelName      “Unknown”
    HorizSync       28.0 – 33.0
    VertRefresh     43.0 – 72.0
    Option         “DPMS”
EndSection
Section “Device”
    Identifier     “Device0”
    Driver         “nvidia”
    VendorName     “NVIDIA Corporation”
    Option         “UseDisplayDevice” “DFP” # <<<<< important
EndSection
Section “Screen”
    Identifier     “Screen0”
    Device         “Device0”
    Monitor        “Monitor0”
    DefaultDepth    24
    #Option         “UseEdid” “FALSE”
    #Option         “UseEdidFreqs” “FALSE”
    #Option         “NoDFPNativeResolutionCheck”
    SubSection     “Display”
        Depth       24
    EndSubSection
EndSection
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