https://bugs.freedesktop.org/show_bug.cgi?id=75794
--- Comment #11 from Michel Dänzer michel@daenzer.net --- First of all, have you confirmed that the problem is still present in Mesa 10.x?
Mesa 9.0 already didn't have the classic r300 driver anymore. You need to use --with-gallium-drivers=r300 instead of --with-dri-drivers="r300" (and maybe also drop --disable-gallium just in case, although AFAICT that shouldn't have any effect).