Quote - > Quote - What are your settings? Try 100 for sensitivity, 1/125 for exposure and 1.4 for f-stop. If it's still black, the lights in your scene are not bright enough.

I use the default settings of Lux, I set nothing in lxs.

Sensitivity, exposure and f-stop are settings in the Lux GUI for Linear tonemapping, you've got to make adjustments to get the right light exposure for your render.

Software: OS X 10.8 - Poser Pro 2012 SR2 - Luxrender 1.0RC3 - Pose2Lux
Hardware: iMac - 3.06 GHz Core2Duo - 12 GB RAM - ATI Radeon HD 4670 - 256 MB