Fall back to OpenGL 1.1 by a "use_legacy_opengl" preferences switch. https://github.com/prusa3d/Slic3r/issues/233 https://github.com/prusa3d/Slic3r/issues/268 https://github.com/prusa3d/Slic3r/issues/619
Fall back to OpenGL 1.1 by a "use_legacy_opengl" preferences switch. https://github.com/prusa3d/Slic3r/issues/233 https://github.com/prusa3d/Slic3r/issues/268 https://github.com/prusa3d/Slic3r/issues/619