http://bugs.winehq.org/show_bug.cgi?id=33964
--- Comment #5 from Henri Verbeet hverbeet@gmail.com 2013-08-22 09:33:27 CDT --- Could you attach a log with WINEDEBUG=+d3d_shader and INTEL_DEBUG=perf? It does look like a driver issue though, so it may be a good idea to test if it's any better with a newer Mesa version, even though the i915 driver probably doesn't see a lot of development these days.