Mageia forum

maybe not only bzflag,
but it's the only openGL / 3d game i play.

anyway, on 3 systems running mageia4 32bit.
1 with an nvidia gpu,
1 with an ATI gpu,
and one with an intel gpu.

all do the same thing, game runs - but has almost no brightness.
and the brightness control in the game has no effect.
i'm not saying you cant see it, the colour saturation is there - just not the brightness - it's like a night-image.

is this a problem with the game build, or something deeper like X11?

Nowindows, one advise:
make your title a bit more explicit, like "brightness misses in bzflag", or whatever suits you.
This improves chances, people are willing to read your post.