I've installed Dreamfall Chapters on my Kubuntu 14.10 box with a Radeon 7850 1GB card running the OSS driver. The system seems to be able to handle the load, but any scene that has rays of lights in it (such as the window in the intro) has opaque black areas instead of lights. Is there a way to fix it?
The forum complained about my screenshots being too big to upload, so here is an imgur link showing areas with black. One area that's consistently black is sleeping Zoe and some of the area surrounding her (though if I stand at just the right angle I can see the carpet and foot of the bed)