I've been working with osgprender, ran into a camera issue and am trying some 
things to see if I can work out a solution.

As part of that, I found the --screen option in the viewer and set it to "-- 
screen 0".  While debugging it exhibits some strange behavior on my dual screen 
nVidia setup.

1. When starting from the debugger, the image will appear for a moment, then 
vanish with "--screen 0"  but not with "--screen 1".  With "--screen 1" the 
image shows up and stays up, with "--screen 0"  I have to use Alt tab to find 
the window to get it to redisplay.

2. When starting from the debugger, with "--screen 0", Win7 will pop up a  
message that says the color scheme has been changed because this application is 
NOT compatible with Aero.  When running with "--screen 1", this doesn't happen, 
no error message appears.

3. When I don't use the --screen option, it uses both screens just fine, and 
there is no warning message.

In both cases, the program appears to work just fine, except for those two 
quirks.  I'm not sure if the bug is osg, opengl, or nvidia drivers


OSG 2.8.2
Win7 Enterprise 64bit

nVidia details:

> 
> NVIDIA System Information report created on: 12/01/2009 10:03:51
> 
> [Display]
> Processor:            Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz (2665 
> MHz)
> Operating System:     Windows 7 Enterprise, 64-bit
> DirectX version:      11.0 
> GPU processor:                GeForce 9600 GT
> Driver version:               191.07
> Stream processors:    64 
> Core clock:           725 MHz 
> Shader clock:         1850 MHz
> Memory clock:         975 MHz (1950 MHz data rate) 
> Memory interface:     256-bit 
> Total available graphics memory:      3327 MB
> Dedicated video memory:       512 MB
> System video memory:  0 MB
> Shared system memory: 2815 MB
> Video BIOS version:   62.94.11.00.14
> IRQ:                  16
> Bus:                  PCI Express x16 Gen2
> 
> [Components]
> 
> nvCpl.cpl             2.7.170.15              NVIDIA Control Panel Applet
> nvCplUI.exe           2.7.170.15              NVIDIA Control Panel
> nvWSS.dll             8.16.11.9107            NVIDIA Workstation Server
> nvViTvS.dll           8.16.11.9107            NVIDIA Video and TV Server
> NVSTVIEW.EXE          7.16.11.9107            NVIDIA GeForce 3D Vision
> NVSTTEST.EXE          7.16.11.9107            NVIDIA 3D Vision Test 
> Application
> NVSTRES.DLL           7.16.11.9107            NVIDIA 3D Vision Module  
> (4743138)
> NVMCTRAY.DLL          8.16.11.9107            NVIDIA Media Center Library
> nvDispS.dll           8.16.11.9107            NVIDIA Display Server
> NVCPL.DLL             8.16.11.9107            NVIDIA Compatible Windows7 
> Display driver, Version 191.07 
> PhysX         09.09.0814              NVIDIA PhysX
> NVCUDA.DLL            8.16.11.9107            NVIDIA CUDA 2.3 driver
> nvGameS.dll           8.16.11.9107            NVIDIA 3D Settings Server
> 


------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=20674#20674




Attachments: 
http://forum.openscenegraph.org//files/capture_170.png


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