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[Bug 1309680] Re: Building Unity fails with "Nux: [GraphicsDisplay::CreateOpenGLWindow] GLX is not supported."

 

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1309680

Title:
  Building Unity fails with "Nux: [GraphicsDisplay::CreateOpenGLWindow]
  GLX is not supported."

Status in Unity:
  New
Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  $ sudo apt-get build-dep unity
  $ apt-get source unity
  $ cd unity-*
  $ dpkg-buildpackage -b -nc -us -uc
  // …
  Scanning dependencies of target check-headless
  make[5]: Leaving directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu'
  make -f tests/CMakeFiles/check-headless.dir/build.make tests/CMakeFiles/check-headless.dir/build
  make[5]: Entering directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu'
  cd /home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu/tests && export NUX_FALLBACK_TEXTURE=TRUE && /home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/tests/dummy-xorg-test-runner.sh ./test-gtest --gtest_output=xml:./test-gtest.xml && /home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/tests/dummy-xorg-test-runner.sh ./test-gtest-slow --gtest_output=xml:./test-gtest-slow.xml && ./test-gtest-xless --gtest_output=xml:./test-gtest-xless.xml && ./test-gestures/test-gestures --gtest_output=xml:./test-gestures.xml && dbus-test-runner --max-wait=300 --task ./test-gtest-service --task-name test-service --task=./test-gtest-dbus --task-name=test-dbus --wait-for=com.canonical.Unity.Test.Scope --parameter=--gtest_output=xml:./test-gtest-dbus.xml --parameter=--gtest_filter=-TestCategoriesChanging*
  WARN  2014-04-18 20:11:41 unity.screen UScreen.cpp:114 UScreen::GetMonitorName: Failed to get monitor name for monitor0
  Xlib:  extension "GLX" missing on display ":1994".
  Nux: [GraphicsDisplay::CreateOpenGLWindow] GLX is not supported.
  Segmentation fault (core dumped)
  make[5]: *** [tests/CMakeFiles/check-headless] Error 139
  make[5]: Leaving directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu'
  make[4]: *** [tests/CMakeFiles/check-headless.dir/all] Error 2
  make[4]: Leaving directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu'
  make[3]: *** [tests/CMakeFiles/check-headless.dir/rule] Error 2
  make[3]: Leaving directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu'
  make[2]: *** [check-headless] Error 2
  make[2]: Leaving directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416/obj-x86_64-linux-gnu'
  make[1]: *** [override_dh_auto_test] Error 2
  make[1]: Leaving directory `/home/pcworld/Downloads/ubtrusty/unity-7.2.0+14.04.20140416'
  make: *** [build] Error 2
  dpkg-buildpackage: error: debian/rules build gave error exit status 2

  
  Expected result: Unity builds without errors from the source package.

  $ glxinfo
  name of display: :0
  display: :0  screen: 0
  direct rendering: Yes
  server glx vendor string: NVIDIA Corporation
  server glx version string: 1.4
  server glx extensions:
      GLX_ARB_create_context, GLX_ARB_create_context_profile, 
      GLX_ARB_create_context_robustness, GLX_ARB_fbconfig_float, 
      GLX_ARB_multisample, GLX_EXT_buffer_age, 
      GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile, 
      GLX_EXT_framebuffer_sRGB, GLX_EXT_swap_control, GLX_EXT_swap_control_tear, 
      GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, 
      GLX_NV_float_buffer, GLX_NV_multisample_coverage, GLX_SGIX_fbconfig, 
      GLX_SGIX_pbuffer, GLX_SGI_swap_control, GLX_SGI_video_sync
  client glx vendor string: NVIDIA Corporation
  client glx version string: 1.4
  client glx extensions:
      GLX_ARB_create_context, GLX_ARB_create_context_profile, 
      GLX_ARB_create_context_robustness, GLX_ARB_fbconfig_float, 
      GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_buffer_age, 
      GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile, 
      GLX_EXT_fbconfig_packed_float, GLX_EXT_framebuffer_sRGB, 
      GLX_EXT_import_context, GLX_EXT_swap_control, GLX_EXT_swap_control_tear, 
      GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, 
      GLX_NV_copy_image, GLX_NV_float_buffer, GLX_NV_multisample_coverage, 
      GLX_NV_present_video, GLX_NV_swap_group, GLX_NV_video_capture, 
      GLX_NV_video_out, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, 
      GLX_SGI_swap_control, GLX_SGI_video_sync
  GLX version: 1.4
  GLX extensions:
      GLX_ARB_create_context, GLX_ARB_create_context_profile, 
      GLX_ARB_create_context_robustness, GLX_ARB_fbconfig_float, 
      GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_buffer_age, 
      GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile, 
      GLX_EXT_framebuffer_sRGB, GLX_EXT_swap_control, GLX_EXT_swap_control_tear, 
      GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating, 
      GLX_NV_float_buffer, GLX_NV_multisample_coverage, GLX_SGIX_fbconfig, 
      GLX_SGIX_pbuffer, GLX_SGI_swap_control, GLX_SGI_video_sync
  OpenGL vendor string: NVIDIA Corporation
  OpenGL renderer string: GeForce GTX 650 Ti BOOST/PCIe/SSE2
  OpenGL core profile version string: 4.3.0 NVIDIA 334.21
  OpenGL core profile shading language version string: 4.30 NVIDIA via Cg compiler
  OpenGL core profile context flags: (none)
  OpenGL core profile profile mask: core profile
  OpenGL core profile extensions:
      GL_AMD_multi_draw_indirect, GL_AMD_seamless_cubemap_per_texture, 
      GL_ARB_ES2_compatibility, GL_ARB_ES3_compatibility, 
      GL_ARB_arrays_of_arrays, GL_ARB_base_instance, GL_ARB_bindless_texture, 
      GL_ARB_blend_func_extended, GL_ARB_buffer_storage, 
      GL_ARB_clear_buffer_object, GL_ARB_clear_texture, 
      GL_ARB_color_buffer_float, GL_ARB_compressed_texture_pixel_storage, 
      GL_ARB_compute_shader, GL_ARB_compute_variable_group_size, 
      GL_ARB_conservative_depth, GL_ARB_copy_buffer, GL_ARB_copy_image, 
      GL_ARB_debug_output, GL_ARB_depth_buffer_float, GL_ARB_depth_clamp, 
      GL_ARB_depth_texture, GL_ARB_draw_buffers, GL_ARB_draw_buffers_blend, 
      GL_ARB_draw_elements_base_vertex, GL_ARB_draw_indirect, 
      GL_ARB_draw_instanced, GL_ARB_enhanced_layouts, 
      GL_ARB_explicit_attrib_location, GL_ARB_explicit_uniform_location, 
      GL_ARB_fragment_coord_conventions, GL_ARB_fragment_layer_viewport, 
      GL_ARB_fragment_program, GL_ARB_fragment_program_shadow, 
      GL_ARB_fragment_shader, GL_ARB_framebuffer_no_attachments, 
      GL_ARB_framebuffer_object, GL_ARB_framebuffer_sRGB, 
      GL_ARB_geometry_shader4, GL_ARB_get_program_binary, GL_ARB_gpu_shader5, 
      GL_ARB_gpu_shader_fp64, GL_ARB_half_float_pixel, GL_ARB_half_float_vertex, 
      GL_ARB_imaging, GL_ARB_indirect_parameters, GL_ARB_instanced_arrays, 
      GL_ARB_internalformat_query, GL_ARB_internalformat_query2, 
      GL_ARB_invalidate_subdata, GL_ARB_map_buffer_alignment, 
      GL_ARB_map_buffer_range, GL_ARB_multi_bind, GL_ARB_multi_draw_indirect, 
      GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query, 
      GL_ARB_occlusion_query2, GL_ARB_pixel_buffer_object, 
      GL_ARB_point_parameters, GL_ARB_point_sprite, 
      GL_ARB_program_interface_query, GL_ARB_provoking_vertex, 
      GL_ARB_query_buffer_object, GL_ARB_robust_buffer_access_behavior, 
      GL_ARB_robustness, GL_ARB_sample_shading, GL_ARB_sampler_objects, 
      GL_ARB_seamless_cube_map, GL_ARB_seamless_cubemap_per_texture, 
      GL_ARB_separate_shader_objects, GL_ARB_shader_atomic_counters, 
      GL_ARB_shader_bit_encoding, GL_ARB_shader_draw_parameters, 
      GL_ARB_shader_group_vote, GL_ARB_shader_image_load_store, 
      GL_ARB_shader_image_size, GL_ARB_shader_objects, GL_ARB_shader_precision, 
      GL_ARB_shader_storage_buffer_object, GL_ARB_shader_subroutine, 
      GL_ARB_shader_texture_lod, GL_ARB_shading_language_100, 
      GL_ARB_shading_language_420pack, GL_ARB_shading_language_include, 
      GL_ARB_shading_language_packing, GL_ARB_shadow, GL_ARB_sparse_texture, 
      GL_ARB_stencil_texturing, GL_ARB_sync, GL_ARB_tessellation_shader, 
      GL_ARB_texture_border_clamp, GL_ARB_texture_buffer_object, 
      GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_buffer_range, 
      GL_ARB_texture_compression, GL_ARB_texture_compression_bptc, 
      GL_ARB_texture_compression_rgtc, GL_ARB_texture_cube_map, 
      GL_ARB_texture_cube_map_array, GL_ARB_texture_env_add, 
      GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar, 
      GL_ARB_texture_env_dot3, GL_ARB_texture_float, GL_ARB_texture_gather, 
      GL_ARB_texture_mirror_clamp_to_edge, GL_ARB_texture_mirrored_repeat, 
      GL_ARB_texture_multisample, GL_ARB_texture_non_power_of_two, 
      GL_ARB_texture_query_levels, GL_ARB_texture_query_lod, 
      GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui, 
      GL_ARB_texture_stencil8, GL_ARB_texture_storage, 
      GL_ARB_texture_storage_multisample, GL_ARB_texture_swizzle, 
      GL_ARB_texture_view, GL_ARB_timer_query, GL_ARB_transform_feedback2, 
      GL_ARB_transform_feedback3, GL_ARB_transform_feedback_instanced, 
      GL_ARB_transpose_matrix, GL_ARB_uniform_buffer_object, 
      GL_ARB_vertex_array_bgra, GL_ARB_vertex_array_object, 
      GL_ARB_vertex_attrib_64bit, GL_ARB_vertex_attrib_binding, 
      GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader, 
      GL_ARB_vertex_type_10f_11f_11f_rev, GL_ARB_vertex_type_2_10_10_10_rev, 
      GL_ARB_viewport_array, GL_ARB_window_pos, GL_ATI_draw_buffers, 
      GL_ATI_texture_float, GL_ATI_texture_mirror_once, 
      GL_EXTX_framebuffer_mixed_formats, GL_EXT_Cg_shader, GL_EXT_abgr, 
      GL_EXT_bgra, GL_EXT_bindable_uniform, GL_EXT_blend_color, 
      GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate, 
      GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_compiled_vertex_array, 
      GL_EXT_depth_bounds_test, GL_EXT_direct_state_access, 
      GL_EXT_draw_buffers2, GL_EXT_draw_instanced, GL_EXT_draw_range_elements, 
      GL_EXT_fog_coord, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample, 
      GL_EXT_framebuffer_multisample_blit_scaled, GL_EXT_framebuffer_object, 
      GL_EXT_framebuffer_sRGB, GL_EXT_geometry_shader4, 
      GL_EXT_gpu_program_parameters, GL_EXT_gpu_shader4, 
      GL_EXT_import_sync_object, GL_EXT_multi_draw_arrays, 
      GL_EXT_packed_depth_stencil, GL_EXT_packed_float, GL_EXT_packed_pixels, 
      GL_EXT_pixel_buffer_object, GL_EXT_point_parameters, 
      GL_EXT_provoking_vertex, GL_EXT_rescale_normal, GL_EXT_secondary_color, 
      GL_EXT_separate_shader_objects, GL_EXT_separate_specular_color, 
      GL_EXT_shader_image_load_store, GL_EXT_shader_integer_mix, 
      GL_EXT_shadow_funcs, GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, 
      GL_EXT_texture3D, GL_EXT_texture_array, GL_EXT_texture_buffer_object, 
      GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_latc, 
      GL_EXT_texture_compression_rgtc, GL_EXT_texture_compression_s3tc, 
      GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp, 
      GL_EXT_texture_env_add, GL_EXT_texture_env_combine, 
      GL_EXT_texture_env_dot3, GL_EXT_texture_filter_anisotropic, 
      GL_EXT_texture_integer, GL_EXT_texture_lod, GL_EXT_texture_lod_bias, 
      GL_EXT_texture_mirror_clamp, GL_EXT_texture_object, GL_EXT_texture_sRGB, 
      GL_EXT_texture_sRGB_decode, GL_EXT_texture_shared_exponent, 
      GL_EXT_texture_storage, GL_EXT_texture_swizzle, GL_EXT_timer_query, 
      GL_EXT_transform_feedback2, GL_EXT_vertex_array, GL_EXT_vertex_array_bgra, 
      GL_EXT_vertex_attrib_64bit, GL_EXT_x11_sync_object, GL_IBM_rasterpos_clip, 
      GL_IBM_texture_mirrored_repeat, GL_KHR_debug, GL_KTX_buffer_region, 
      GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_NVX_nvenc_interop, 
      GL_NV_ES1_1_compatibility, GL_NV_bindless_multi_draw_indirect, 
      GL_NV_bindless_texture, GL_NV_blend_equation_advanced, GL_NV_blend_square, 
      GL_NV_compute_program5, GL_NV_conditional_render, 
      GL_NV_copy_depth_to_color, GL_NV_copy_image, GL_NV_depth_buffer_float, 
      GL_NV_depth_clamp, GL_NV_draw_texture, GL_NV_explicit_multisample, 
      GL_NV_fence, GL_NV_float_buffer, GL_NV_fog_distance, 
      GL_NV_fragment_program, GL_NV_fragment_program2, 
      GL_NV_fragment_program_option, GL_NV_framebuffer_multisample_coverage, 
      GL_NV_geometry_shader4, GL_NV_gpu_program4, GL_NV_gpu_program4_1, 
      GL_NV_gpu_program5, GL_NV_gpu_program5_mem_extended, 
      GL_NV_gpu_program_fp64, GL_NV_gpu_shader5, GL_NV_half_float, 
      GL_NV_light_max_exponent, GL_NV_multisample_coverage, 
      GL_NV_multisample_filter_hint, GL_NV_occlusion_query, 
      GL_NV_packed_depth_stencil, GL_NV_parameter_buffer_object, 
      GL_NV_parameter_buffer_object2, GL_NV_path_rendering, 
      GL_NV_pixel_data_range, GL_NV_point_sprite, GL_NV_primitive_restart, 
      GL_NV_register_combiners, GL_NV_register_combiners2, 
      GL_NV_shader_atomic_counters, GL_NV_shader_atomic_float, 
      GL_NV_shader_buffer_load, GL_NV_shader_storage_buffer_object, 
      GL_NV_shader_thread_group, GL_NV_shader_thread_shuffle, 
      GL_NV_texgen_reflection, GL_NV_texture_barrier, 
      GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4, 
      GL_NV_texture_expand_normal, GL_NV_texture_multisample, 
      GL_NV_texture_rectangle, GL_NV_texture_shader, GL_NV_texture_shader2, 
      GL_NV_texture_shader3, GL_NV_transform_feedback, 
      GL_NV_transform_feedback2, GL_NV_vdpau_interop, GL_NV_vertex_array_range, 
      GL_NV_vertex_array_range2, GL_NV_vertex_attrib_integer_64bit, 
      GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program, 
      GL_NV_vertex_program1_1, GL_NV_vertex_program2, 
      GL_NV_vertex_program2_option, GL_NV_vertex_program3, GL_S3_s3tc, 
      GL_SGIS_generate_mipmap, GL_SGIS_texture_lod, GL_SGIX_depth_texture, 
      GL_SGIX_shadow, GL_SUN_slice_accum

  OpenGL version string: 4.4.0 NVIDIA 334.21
  OpenGL shading language version string: 4.40 NVIDIA via Cg compiler
  OpenGL context flags: (none)
  OpenGL profile mask: (none)
  OpenGL extensions:
      GL_AMD_multi_draw_indirect, GL_AMD_seamless_cubemap_per_texture, 
      GL_ARB_ES2_compatibility, GL_ARB_ES3_compatibility, 
      GL_ARB_arrays_of_arrays, GL_ARB_base_instance, GL_ARB_bindless_texture, 
      GL_ARB_blend_func_extended, GL_ARB_buffer_storage, 
      GL_ARB_clear_buffer_object, GL_ARB_clear_texture, 
      GL_ARB_color_buffer_float, GL_ARB_compatibility, 
      GL_ARB_compressed_texture_pixel_storage, GL_ARB_compute_shader, 
      GL_ARB_compute_variable_group_size, GL_ARB_conservative_depth, 
      GL_ARB_copy_buffer, GL_ARB_copy_image, GL_ARB_debug_output, 
      GL_ARB_depth_buffer_float, GL_ARB_depth_clamp, GL_ARB_depth_texture, 
      GL_ARB_draw_buffers, GL_ARB_draw_buffers_blend, 
      GL_ARB_draw_elements_base_vertex, GL_ARB_draw_indirect, 
      GL_ARB_draw_instanced, GL_ARB_enhanced_layouts, 
      GL_ARB_explicit_attrib_location, GL_ARB_explicit_uniform_location, 
      GL_ARB_fragment_coord_conventions, GL_ARB_fragment_layer_viewport, 
      GL_ARB_fragment_program, GL_ARB_fragment_program_shadow, 
      GL_ARB_fragment_shader, GL_ARB_framebuffer_no_attachments, 
      GL_ARB_framebuffer_object, GL_ARB_framebuffer_sRGB, 
      GL_ARB_geometry_shader4, GL_ARB_get_program_binary, GL_ARB_gpu_shader5, 
      GL_ARB_gpu_shader_fp64, GL_ARB_half_float_pixel, GL_ARB_half_float_vertex, 
      GL_ARB_imaging, GL_ARB_indirect_parameters, GL_ARB_instanced_arrays, 
      GL_ARB_internalformat_query, GL_ARB_internalformat_query2, 
      GL_ARB_invalidate_subdata, GL_ARB_map_buffer_alignment, 
      GL_ARB_map_buffer_range, GL_ARB_multi_bind, GL_ARB_multi_draw_indirect, 
      GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query, 
      GL_ARB_occlusion_query2, GL_ARB_pixel_buffer_object, 
      GL_ARB_point_parameters, GL_ARB_point_sprite, 
      GL_ARB_program_interface_query, GL_ARB_provoking_vertex, 
      GL_ARB_query_buffer_object, GL_ARB_robust_buffer_access_behavior, 
      GL_ARB_robustness, GL_ARB_sample_shading, GL_ARB_sampler_objects, 
      GL_ARB_seamless_cube_map, GL_ARB_seamless_cubemap_per_texture, 
      GL_ARB_separate_shader_objects, GL_ARB_shader_atomic_counters, 
      GL_ARB_shader_bit_encoding, GL_ARB_shader_draw_parameters, 
      GL_ARB_shader_group_vote, GL_ARB_shader_image_load_store, 
      GL_ARB_shader_image_size, GL_ARB_shader_objects, GL_ARB_shader_precision, 
      GL_ARB_shader_storage_buffer_object, GL_ARB_shader_subroutine, 
      GL_ARB_shader_texture_lod, GL_ARB_shading_language_100, 
      GL_ARB_shading_language_420pack, GL_ARB_shading_language_include, 
      GL_ARB_shading_language_packing, GL_ARB_shadow, GL_ARB_sparse_texture, 
      GL_ARB_stencil_texturing, GL_ARB_sync, GL_ARB_tessellation_shader, 
      GL_ARB_texture_border_clamp, GL_ARB_texture_buffer_object, 
      GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_buffer_range, 
      GL_ARB_texture_compression, GL_ARB_texture_compression_bptc, 
      GL_ARB_texture_compression_rgtc, GL_ARB_texture_cube_map, 
      GL_ARB_texture_cube_map_array, GL_ARB_texture_env_add, 
      GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar, 
      GL_ARB_texture_env_dot3, GL_ARB_texture_float, GL_ARB_texture_gather, 
      GL_ARB_texture_mirror_clamp_to_edge, GL_ARB_texture_mirrored_repeat, 
      GL_ARB_texture_multisample, GL_ARB_texture_non_power_of_two, 
      GL_ARB_texture_query_levels, GL_ARB_texture_query_lod, 
      GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui, 
      GL_ARB_texture_stencil8, GL_ARB_texture_storage, 
      GL_ARB_texture_storage_multisample, GL_ARB_texture_swizzle, 
      GL_ARB_texture_view, GL_ARB_timer_query, GL_ARB_transform_feedback2, 
      GL_ARB_transform_feedback3, GL_ARB_transform_feedback_instanced, 
      GL_ARB_transpose_matrix, GL_ARB_uniform_buffer_object, 
      GL_ARB_vertex_array_bgra, GL_ARB_vertex_array_object, 
      GL_ARB_vertex_attrib_64bit, GL_ARB_vertex_attrib_binding, 
      GL_ARB_vertex_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader, 
      GL_ARB_vertex_type_10f_11f_11f_rev, GL_ARB_vertex_type_2_10_10_10_rev, 
      GL_ARB_viewport_array, GL_ARB_window_pos, GL_ATI_draw_buffers, 
      GL_ATI_texture_float, GL_ATI_texture_mirror_once, 
      GL_EXTX_framebuffer_mixed_formats, GL_EXT_Cg_shader, GL_EXT_abgr, 
      GL_EXT_bgra, GL_EXT_bindable_uniform, GL_EXT_blend_color, 
      GL_EXT_blend_equation_separate, GL_EXT_blend_func_separate, 
      GL_EXT_blend_minmax, GL_EXT_blend_subtract, GL_EXT_compiled_vertex_array, 
      GL_EXT_depth_bounds_test, GL_EXT_direct_state_access, 
      GL_EXT_draw_buffers2, GL_EXT_draw_instanced, GL_EXT_draw_range_elements, 
      GL_EXT_fog_coord, GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample, 
      GL_EXT_framebuffer_multisample_blit_scaled, GL_EXT_framebuffer_object, 
      GL_EXT_framebuffer_sRGB, GL_EXT_geometry_shader4, 
      GL_EXT_gpu_program_parameters, GL_EXT_gpu_shader4, 
      GL_EXT_import_sync_object, GL_EXT_multi_draw_arrays, 
      GL_EXT_packed_depth_stencil, GL_EXT_packed_float, GL_EXT_packed_pixels, 
      GL_EXT_pixel_buffer_object, GL_EXT_point_parameters, 
      GL_EXT_provoking_vertex, GL_EXT_rescale_normal, GL_EXT_secondary_color, 
      GL_EXT_separate_shader_objects, GL_EXT_separate_specular_color, 
      GL_EXT_shader_image_load_store, GL_EXT_shader_integer_mix, 
      GL_EXT_shadow_funcs, GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, 
      GL_EXT_texture3D, GL_EXT_texture_array, GL_EXT_texture_buffer_object, 
      GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_latc, 
      GL_EXT_texture_compression_rgtc, GL_EXT_texture_compression_s3tc, 
      GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp, 
      GL_EXT_texture_env_add, GL_EXT_texture_env_combine, 
      GL_EXT_texture_env_dot3, GL_EXT_texture_filter_anisotropic, 
      GL_EXT_texture_integer, GL_EXT_texture_lod, GL_EXT_texture_lod_bias, 
      GL_EXT_texture_mirror_clamp, GL_EXT_texture_object, GL_EXT_texture_sRGB, 
      GL_EXT_texture_sRGB_decode, GL_EXT_texture_shared_exponent, 
      GL_EXT_texture_storage, GL_EXT_texture_swizzle, GL_EXT_timer_query, 
      GL_EXT_transform_feedback2, GL_EXT_vertex_array, GL_EXT_vertex_array_bgra, 
      GL_EXT_vertex_attrib_64bit, GL_EXT_x11_sync_object, GL_IBM_rasterpos_clip, 
      GL_IBM_texture_mirrored_repeat, GL_KHR_debug, GL_KTX_buffer_region, 
      GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_NVX_nvenc_interop, 
      GL_NV_ES1_1_compatibility, GL_NV_bindless_multi_draw_indirect, 
      GL_NV_bindless_texture, GL_NV_blend_equation_advanced, GL_NV_blend_square, 
      GL_NV_compute_program5, GL_NV_conditional_render, 
      GL_NV_copy_depth_to_color, GL_NV_copy_image, GL_NV_depth_buffer_float, 
      GL_NV_depth_clamp, GL_NV_draw_texture, GL_NV_explicit_multisample, 
      GL_NV_fence, GL_NV_float_buffer, GL_NV_fog_distance, 
      GL_NV_fragment_program, GL_NV_fragment_program2, 
      GL_NV_fragment_program_option, GL_NV_framebuffer_multisample_coverage, 
      GL_NV_geometry_shader4, GL_NV_gpu_program4, GL_NV_gpu_program4_1, 
      GL_NV_gpu_program5, GL_NV_gpu_program5_mem_extended, 
      GL_NV_gpu_program_fp64, GL_NV_gpu_shader5, GL_NV_half_float, 
      GL_NV_light_max_exponent, GL_NV_multisample_coverage, 
      GL_NV_multisample_filter_hint, GL_NV_occlusion_query, 
      GL_NV_packed_depth_stencil, GL_NV_parameter_buffer_object, 
      GL_NV_parameter_buffer_object2, GL_NV_path_rendering, 
      GL_NV_pixel_data_range, GL_NV_point_sprite, GL_NV_primitive_restart, 
      GL_NV_register_combiners, GL_NV_register_combiners2, 
      GL_NV_shader_atomic_counters, GL_NV_shader_atomic_float, 
      GL_NV_shader_buffer_load, GL_NV_shader_storage_buffer_object, 
      GL_NV_shader_thread_group, GL_NV_shader_thread_shuffle, 
      GL_NV_texgen_reflection, GL_NV_texture_barrier, 
      GL_NV_texture_compression_vtc, GL_NV_texture_env_combine4, 
      GL_NV_texture_expand_normal, GL_NV_texture_multisample, 
      GL_NV_texture_rectangle, GL_NV_texture_shader, GL_NV_texture_shader2, 
      GL_NV_texture_shader3, GL_NV_transform_feedback, 
      GL_NV_transform_feedback2, GL_NV_vdpau_interop, GL_NV_vertex_array_range, 
      GL_NV_vertex_array_range2, GL_NV_vertex_attrib_integer_64bit, 
      GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program, 
      GL_NV_vertex_program1_1, GL_NV_vertex_program2, 
      GL_NV_vertex_program2_option, GL_NV_vertex_program3, GL_S3_s3tc, 
      GL_SGIS_generate_mipmap, GL_SGIS_texture_lod, GL_SGIX_depth_texture, 
      GL_SGIX_shadow, GL_SUN_slice_accum

  228 GLX Visuals
  // …

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