https://bugs.freedesktop.org/show_bug.cgi?id=50135 --- Comment #9 from Simone Scanzoni --- I still have this problem with Mesa 9.2-devel (git-4deefd9) ( patched with: r600g: emit a ps partial flush after CP DMA r600g: enable CP DMA on r6xx (v3) ) The night times scenes work better with force_glsl_extensions_warn=true I saw this problem with Unigine Heaven 3.0, Heroes of Newerth 3.0.3 (also 2.x) and Xonotic 0.6.0 . I think the last one is interesting because it is under GPL and works fine if I just enable shadows from realtime world lights but shows the problem if I enable "Soft shadows" too. The tooltip of "Soft shadows" is: [enables use of shadowmapping (depth texture sampling) instead of stencil shadow volumes, requires gl_fbo 1] The problem in Xonotic can be seen only in a few places with dynamic world lightning, like some rooms with lava in level 6 and the lights behind some big fans in level 8. HD3850 (RV670) AGP, kernel 3.8.0 -- You are receiving this mail because: You are the assignee for the bug.