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karwosts

OpenGL My program is killing my whole computer

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karwosts    840
So I've got an odd problem that I can't figure out to do with. I've been developing a simple program for some time, just a little rendering project to draw some objects. I haven't had a problem for a while, but all of a sudden I'm noticing terrible problems when I launch it, which are intermittent and solved by rebooting the computer.

It seems that when I boot the computer the software runs great the first time, getting good performance and everything works as expected (100+ fps). However the second or third time I run the program, it seems to start choking badly. For one thing it will start complaining about either GL_FRAMEBUFFER_UNSUPPORTED, or GL_OUT_OF_MEMORY, both which worked fine the first times it ran. Even if I disable rendering everything that used external framebuffers, I'm finding that my program now takes 9000ms to draw a single frame of less than 1000 vertices (roughly 0.1 fps). It's not just my own program either, its like all of OpenGL is broken on my computer. I download the gDebugger trial with the teapot example application, and it runs at 1000+ fps before I get this problem, but once I start noticing this problem the teapot only runs at <10 fps.

It's like somehow my GPU (nvidia 8800) just gives up after a while and stops doing anything and falls back to software, but I don't understand how I can be causing this. Do I have bad hardware, or a bad driver? I've downloaded the newest driver and installed with DriverCleaner, so I'm at my wits end here trying to figure out what to do.

I've been doing opengl on this computer for about a year now and haven't really seen this kind of problem before. Is there anything that I as a developer could possibly be doing wrong to kill OpenGL even after the program is closed? Windows should clean up all the leftover contexts when the program exits, correct?

I haven't seen this on any other programs I've run so I don't know if it could be something wrong with my hardware, but I didn't think there was anything I could do to actually break the computer after the program exits.

I don't have any source code to post because it's a moderately sized program segmented into dozens of files, and it runs fine most of the time, so I'm not sure what I could post that would be helpful to anyone.

Anyway I'm thankful for any and all suggestions about how to proceed here outside of tossing my computer over the balcony =\

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KanTeH    124
Args sounds bad!

Try to remove parts of ur programm and find what it causes.
I dont know OpenGL, but get sure u free OpenGL when ur programm exits.
When ur programm is failing can u do other OpenGL/3D Stuff with ur PC ?
That the openGL debugger runs slow, seems to point out u really wasting memory or so. Have u tried ur programm on other Computers ?

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dpadam450    2357
Sounds like a bad driver. I've never cleaned up my textures or framebuffers by explicitly deleting them when my application closes (so I assume this is taken care of when the application closes). I might have had the problem a long time ago but I don't remember and was probably a driver issue.

Make sure to ctrl+alt+delete and make sure your application is fully exiting, otherwise your loading the programs over and over until your gpu is filling up.

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