View Full Version : NVIDIA system restart problem ???

03-26-2002, 10:35 PM
Hi to all,

I feel an unusual problem in the OpenGL display.I am using WGL functions with MFC class.In the OpenGL view class,
the PIXELFORMATDESCRIPTOR structure initialized is given:-

sizeof(PIXELFORMATDESCRIPTOR), // size of this pfd
1, // version number
PFD_DRAW_TO_WINDOW | // support window
PFD_SUPPORT_OPENGL | // support OpenGL
PFD_DOUBLEBUFFER | // double buffered
24, // 24-bit color depth
0, 0, 0, 0, 0, 0, // color bits ignored
0, // no alpha buffer
0, // shift bit ignored
0, // no accumulation buffer
0, 0, 0, 0, // accum bits ignored
24, // 24-bit z-buffer
8, // stencil buffer
0, // no auxiliary buffer
PFD_MAIN_PLANE, // main layer
0, // reserved
0, 0, 0 // layer masks ignored

After the OpenGL view is created, if we try to do any operation in another view (not using OpenGL instructions,using GDI calls)the system is restarted shows the message KMODE_EXCEPTION_NOT_HANDLED in nv4-disp.dll.

If i give the alpha buffer as 8 bit then no problem.But a black rectangle is shown in the right and bottom of the opengl window.

I am using NVIDIA RIVA TNT2 Model 64/Model 64 pro AGP card.

My doubt is Alpha buffer,Z-buffer and Stencil buffer are card dependent ??

How i can solve these problems ?? I am not expert in Driver side issues.

Thanks for any reply,

03-27-2002, 05:38 PM
No solutions offhand, but what driver version are you currently using?

And would you like anyone on this board to test your program to make sure that it is indeed a problem with the drivers?

Hey, just looked a little more closely. Someone on this board correct me if I am wrong, but you need the 8-bit alpha if you are going to use a 24/8 Z/Stenil buffer on a TNT...

[This message has been edited by thewizard75 (edited 03-27-2002).]