https://bugs.winehq.org/show_bug.cgi?id=39787 --- Comment #9 from Alois Schlögl <alois.schloegl(a)gmail.com> --- These links seem to be related https://www.opengl.org/registry/specs/APPLE/fence.txt http://www.wesnoth.org/devdocs/glew_8h.html So, its an OpenGL thing. In case it's useful, here is the output of # glxinfo |grep "OpenGL.*string" OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) G33 OpenGL version string: 2.1 Mesa 10.3.2 OpenGL shading language version string: 1.20 OpenGL ES profile version string: OpenGL ES 2.0 Mesa 10.3.2 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16 I'll also add full output of glxinfo as attachment -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.