https://bugs.freedesktop.org/show_bug.cgi?id=30776
Summary: Wine expects GL_VENDOR to identify the card vendor Product: Mesa Version: git Platform: Other OS/Version: All Status: NEW Severity: trivial Priority: medium Component: Drivers/DRI/R600 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: seppo.yli-olli@iki.fi
Not sure whose bug this is but Wine's logic for figuring out which card we have currently uses the following piece of code to figure out which "hw_vendor" we have: if (strstr(gl_vendor_string, "ATI") || strstr(gl_vendor_string, "Advanced Micro Devices, Inc.") || strstr(gl_vendor_string, "X.Org R300 Project") || strstr(gl_renderer, "R100") || strstr(gl_renderer, "R200") || strstr(gl_renderer, "R300") || strstr(gl_renderer, "R600") || strstr(gl_renderer, "R700")) return HW_VENDOR_ATI; Now, this wasn't such a problem with classic driver, eg with r600c we had even double positive match. With r600g, however, renderer string says the exact chip name (which Wine uses after it has found the right branch of chip id's to search from) and GL_VENDOR is "X.org". This causes Wine to fail detection (and end up fallbacking in a rather boring fashion through HW_VENDOR_NVIDIA finally to Nouveau since it already *did* manage to detect that we're running Mesa). I'm not sure what exactly the GL_VENDOR string should say but I'm hoping something more distinguishing could be put there. The first two items in that list would imo be viable options but that's not to say something else couldn't be put in and make Wine detect "hw_vendor" based on that instead.