[osg-users] OSG on overlapping screen wall

Yanling Liu vrnova at gmail.com
Tue Sep 2 09:11:39 PDT 2008


Hello, I am using OSG with a overlapping screen wall (two projecters
overlapped to create a large display). A problem is that osgViewer won't use
all display area: Two projectors display two sub-screens overlapping
together for a large screen. But osgViewer only use one sub-screen. I have
tried to use different parameters of --display and --screen but no help at
all.

Please help... many thanks,
Yanling

This is my xorg.conf:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister at builder58)  Thu Jul 17
18:39:00 PDT 2008

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildmeister at builder26)  Thu Feb 14
18:14:18 PST 2008

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
    RgbPath         "/usr/X11R6/lib/X11/rgb"
    FontPath        "unix/:7100"
EndSection

Section "Module"
    Load           "dbe"
    Load           "extmod"
    Load           "type1"
    Load           "freetype"
    Load           "glx"
EndSection

Section "ServerFlags"
    Option         "Xinerama" "0"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from data in "/etc/sysconfig/keyboard"
    Identifier     "Keyboard0"
    Driver         "kbd"
    Option         "XkbLayout" "us"
    Option         "XkbModel" "pc105"
EndSection

Section "Monitor"

    # HorizSync source: xconfig, VertRefresh source: xconfig
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "CRT-0"
    HorizSync       30.0 - 140.0
    VertRefresh     48.0 - 160.0
    ModeLine       "1400x1050_96_wall" 205.4 1400 1512 1664 1928 1050 1051
1054 1110 -hsync -vsync
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro FX 5600"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT-0: 1400x1050_96_wall +0+0, CRT-1:
1400x1050_96_wall +1022+0"
    Option         "Stereo" "3"
    Option         "AddARGBGLXVisuals" "False"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Extensions"
    Option         "Composite" "off"
EndSection
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