Hi all,

I've been trying to learn OpenGL in order to start making a game demo, and have started with initialising a window etc. Everything has gone nicely up until now, except I seem to be unable to get glut to enter into game mode. I have followed the tutorial available here (http://www.lighthouse3d.com/opengl/g....php?gameglut), but glutGameModeGet(GLUT_GAME_MODE_POSSIBLE) always returns 0 regardless of what parameters I throw at it when calling glutGameModeString(). When i call glutEnterGameMode() the screen flickers momentarily then the following error message is displayed:

GLUT: Warning in demo: The following is a new check for GLUT 3.0; update your code.
GLUT: Fatal Error in demo: redisplay needed for window 1, but no display callback.

I'm stuck for ideas for how to fix this. BTW i have my NVIDIA driver correctly installed.

Thanks for any help!

Is gamemode supported on linux? Im not a great fan of glut and its nasty thread hogging(on windows at least). Couple of alternatives
freeglut or sdl. In on windows at the moment, I'll boot into linux in a little while and try gamemode.

It flashed into gamemode but then I lost control of the app, couldn't close it and could not see the glut window

At least you got an app that ran! Mine attempted to run but then instantly quit. I would have thought that GLUT would be supported/functional on Linux to the same extent as Windows. If not, it's a pretty nasty problem.