Laptop screen turns dim - SDL_SetVideoMode

Havent had any problems on said laptop running opengl code using the freeglut library.

It seems that the screen turns dim at the SDL_SetVideoMode() function. I have only found a couple other references to this problem which i do not think lead to the.correct fault.

http://sdl.5483.n7.nabble.com/Dimmed-screen-td23288.html

http://ubuntuforums.org/showthread.php?t=1066236

I am running Tiny Core Linux but it seems this isnt specific to TC.

Any help on the matter would be greatly appreciated.

Thanks