https://bugs.freedesktop.org/show_bug.cgi?id=24818

--- Comment #15 from Michel Dänzer michel@daenzer.net 2011-02-01 04:28:47 PST --- (In reply to comment #14)

FWIW it just started working again for me with 600g - but I am not sure if it's working properly as 600g and swrastg are the same and render solid shadows, but swrast shadows are not 100% solid on blue and red.

The difference is due to Gallium drivers not supporting the GL_ARB_shadow_ambient extension.