https://bugs.freedesktop.org/show_bug.cgi?id=44499
--- Comment #11 from smoki smoki00790@gmail.com ---
I see Blender is fixed now as in https://bugs.freedesktop.org/show_bug.cgi?id=47375 , thanks :).
According to these checks for fog i've also excluded it (ctx->Fog.Enabled) also for _mesa_meta_Bitmap to test fog test (fog is test from mesa-demos/tests/fog.c) and then it showed up on screen instantly - otherwise it needs some 15 seconds to show.