nvidia Ubuntu下无法检测第二个显示器的问题
2011年9月20日
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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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