https://bugs.freedesktop.org/show_bug.cgi?id=28437
--- Comment #1 from Roland Scheidegger sroland@vmware.com 2010-06-08 07:45:57 PDT --- Looks to me like that's because decompress_with_blit adds a PIPE_BIND_TRANSFER_READ bind flag (apart from the PIPE_BIND_RENDER_TARGET flag), which the r300g driver thinks it can't handle in is_format_supported. I think this flag is actually quite inconsistently used, pretty much all other places assume transfers are possible anyway even without this flag, though I guess the driver shouldn't choke on it.