webgl example does not run correctly

[fyears]

I am running node-js v0.11.11 and node-webkit v0.9.2 in Windows.

When I run nw webgl, a windows pop up, but the content is not rendered correctly. Here is the FULL screen shot of the window created by node-webkit:

[petre2dor]

similar issue on Ubuntu 14.04
Uncaught node.js Error
TypeError: Cannot call method 'getExtension' of null at initGL (file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/three.min.js:21422:34)
at new THREE.WebGLRenderer (file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/three.min.js:14887:2)
at init (file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/showlogo3d.js:61:23)
at HTMLDocument.eval (file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/showlogo3d.js:29:5)

And the terminal log is:
[21733:0617/234727:INFO:gpu_info_collector_x11.cc(80)] NVCtrl extension does not exist.
ATTENTION: default value of option force_s3tc_enable overridden by environment.
[21733:0617/234727:INFO:CONSOLE(14720)] ""THREE.WebGLRenderer" "50"", source: file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/three.min.js (14720)
[21733:0617/234727:INFO:CONSOLE(21418)] ""Error creating WebGL context."", source: file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/three.min.js (21418)
[21733:0617/234727:INFO:CONSOLE(21422)] "Uncaught TypeError: Cannot call method 'getExtension' of null", source: file:///home/petre/Documents/work/node-webkit-v0.9.2-linux-x64/nw-sample-apps/webgl/js/three.min.js (21422)

[jonasmalacofilho]

Same problem here, also on Ubuntu 14.04.

It might be related to an issue with webkit and our hardware/drivers. @petre2dor and @fyears, what does chrome://gpu/ output?

There are also some related issues on node-webkit (such as this)...

[fyears]

@jonasmalacofilho

I am running node-js v0.11.11 and node-webkit v0.9.2 in Windows.
According to https://github.com/rogerwang/node-webkit/wiki/Extract-info-about-gpu , the extracted chrome://gpu info is here:

{
 "basic_info": [
  {
   "description": "Initialization time",
   "value": "0"
  },
  {
   "description": "Sandboxed",
   "value": false
  },
  {
   "description": "GPU0",
   "value": "VENDOR = 0x10de, DEVICE= 0x0a6c"
  },
  {
   "description": "Optimus",
   "value": false
  },
  {
   "description": "AMD switchable",
   "value": false
  },
  {
   "description": "Driver vendor",
   "value": "NVIDIA"
  },
  {
   "description": "Driver version",
   "value": "9.18.13.2702"
  },
  {
   "description": "Driver date",
   "value": "9-1-2013"
  },
  {
   "description": "Pixel shader version",
   "value": ""
  },
  {
   "description": "Vertex shader version",
   "value": ""
  },
  {
   "description": "Machine model",
   "value": ""
  },
  {
   "description": "GL version",
   "value": ""
  },
  {
   "description": "GL_VENDOR",
   "value": ""
  },
  {
   "description": "GL_RENDERER",
   "value": ""
  },
  {
   "description": "GL_VERSION",
   "value": ""
  },
  {
   "description": "GL_EXTENSIONS",
   "value": ""
  },
  {
   "description": "Window system binding vendor",
   "value": ""
  },
  {
   "description": "Window system binding version",
   "value": ""
  },
  {
   "description": "Window system binding extensions",
   "value": ""
  },
  {
   "description": "Reset notification strategy",
   "value": "0x0000"
  }
 ],
 "diagnostics": null,
 "featureStatus": {
  "featureStatus": {
   "2d_canvas": "unavailable_software",
   "3d_css": "unavailable_off",
   "compositing": "unavailable_software",
   "css_animation": "unavailable_software",
   "flash_3d": "unavailable_off",
   "flash_stage3d": "unavailable_off",
   "flash_stage3d_baseline": "unavailable_off",
   "multisampling": "unavailable_off",
   "texture_sharing": "unavailable_off",
   "video": "unavailable_software",
   "video_decode": "unavailable_software",
   "webgl": "unavailable_off"
  },
  "problems": [
   {
    "crBugs": [],
    "description": "GPU process was unable to boot: GPU process launch failed.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     304369,
     315215
    ],
    "description": "Texture sharing should be disabled on all Windows machines",
    "webkitBugs": []
   }
  ],
  "workarounds": [
   "clear_alpha_in_readpixels",
   "exit_on_context_lost",
   "set_texture_filter_before_generating_mipmap",
   "use_current_program_after_successful_link"
  ]
 },
 "performance_info": [
  {
   "description": "Graphics",
   "value": "5.2"
  },
  {
   "description": "Gaming",
   "value": "4.7"
  },
  {
   "description": "Overall",
   "value": "4.7"
  }
 ]
} 

[petre2dor]

When I open ./nw --url="chrome://gpu/" I get some errors. See the attached image.

And chrome://gpu output:

{
 "basic_info": [
  {
   "description": "Initialization time",
   "value": "0"
  },
  {
   "description": "Sandboxed",
   "value": false
  },
  {
   "description": "GPU0",
   "value": "VENDOR = 0x8086, DEVICE= 0x0d26"
  },
  {
   "description": "Optimus",
   "value": false
  },
  {
   "description": "AMD switchable",
   "value": false
  },
  {
   "description": "Driver vendor",
   "value": ""
  },
  {
   "description": "Driver version",
   "value": ""
  },
  {
   "description": "Driver date",
   "value": ""
  },
  {
   "description": "Pixel shader version",
   "value": ""
  },
  {
   "description": "Vertex shader version",
   "value": ""
  },
  {
   "description": "Machine model",
   "value": ""
  },
  {
   "description": "GL version",
   "value": ""
  },
  {
   "description": "GL_VENDOR",
   "value": ""
  },
  {
   "description": "GL_RENDERER",
   "value": ""
  },
  {
   "description": "GL_VERSION",
   "value": ""
  },
  {
   "description": "GL_EXTENSIONS",
   "value": ""
  },
  {
   "description": "Window system binding vendor",
   "value": ""
  },
  {
   "description": "Window system binding version",
   "value": ""
  },
  {
   "description": "Window system binding extensions",
   "value": ""
  },
  {
   "description": "Reset notification strategy",
   "value": "0x0000"
  }
 ],
 "featureStatus": {
  "featureStatus": {
   "2d_canvas": "unavailable_software",
   "3d_css": "enabled",
   "compositing": "enabled",
   "css_animation": "accelerated",
   "flash_3d": "enabled",
   "flash_stage3d": "unavailable_off",
   "flash_stage3d_baseline": "unavailable_off",
   "multisampling": "enabled",
   "texture_sharing": "enabled",
   "video": "enabled",
   "video_decode": "unavailable_software",
   "webgl": "enabled"
  },
  "problems": [
   {
    "crBugs": [
     59302,
     315217
    ],
    "description": "GL driver is software rendered. GPU acceleration is disabled.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     76703,
     164555,
     225200
    ],
    "description": "Intel mesa drivers are crash-prone.",
    "webkitBugs": []
   },
   {
    "crBugs": [],
    "description": "Mesa drivers in linux older than 7.11 are assumed to be buggy.",
    "webkitBugs": []
   },
   {
    "crBugs": [],
    "description": "Accelerated 2d canvas is unstable in Linux at the moment.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     95934,
     94973,
     136240
    ],
    "description": "ATI/AMD cards with older drivers in Linux are crash-prone.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     95934,
     94973
    ],
    "description": "ATI/AMD cards with third-party drivers in Linux are crash-prone.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     95934,
     94973
    ],
    "description": "ATI/AMD cards with third-party drivers in Linux are crash-prone.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     129848
    ],
    "description": "Stage3D is not supported on Linux.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     137247,
     133828
    ],
    "description": "Accelerated video decode is unavailable on Mac and Linux.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     145531
    ],
    "description": "Disable VMware software renderer.",
    "webkitBugs": []
   },
   {
    "crBugs": [],
    "description": "Force compositing mode is off, either disabled at the command line or not supported by the current system.",
    "webkitBugs": []
   }
  ],
  "workarounds": [
   "clear_alpha_in_readpixels",
   "disable_ext_occlusion_query",
   "set_texture_filter_before_generating_mipmap"
  ]
 }
} VM143:2
{
 "basic_info": [
  {
   "description": "Initialization time",
   "value": "65"
  },
  {
   "description": "Sandboxed",
   "value": false
  },
  {
   "description": "GPU0",
   "value": "VENDOR = 0x8086, DEVICE= 0x0d26"
  },
  {
   "description": "Optimus",
   "value": false
  },
  {
   "description": "AMD switchable",
   "value": false
  },
  {
   "description": "Driver vendor",
   "value": "Mesa"
  },
  {
   "description": "Driver version",
   "value": "10.1.3"
  },
  {
   "description": "Driver date",
   "value": ""
  },
  {
   "description": "Pixel shader version",
   "value": "1.30"
  },
  {
   "description": "Vertex shader version",
   "value": "1.30"
  },
  {
   "description": "Machine model",
   "value": ""
  },
  {
   "description": "GL version",
   "value": "3.0"
  },
  {
   "description": "GL_VENDOR",
   "value": "Intel Open Source Technology Center"
  },
  {
   "description": "GL_RENDERER",
   "value": "Mesa DRI Intel(R) Haswell Mobile "
  },
  {
   "description": "GL_VERSION",
   "value": "3.0 Mesa 10.1.3"
  },
  {
   "description": "GL_EXTENSIONS",
   "value": "GL_ARB_multisample GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_copy_texture GL_EXT_polygon_offset GL_EXT_subtexture GL_EXT_texture_object GL_EXT_vertex_array GL_EXT_compiled_vertex_array GL_EXT_texture GL_EXT_texture3D GL_IBM_rasterpos_clip GL_ARB_point_parameters GL_EXT_draw_range_elements GL_EXT_packed_pixels GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_separate_specular_color GL_EXT_texture_edge_clamp GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_ARB_framebuffer_sRGB GL_ARB_multitexture GL_EXT_framebuffer_sRGB GL_IBM_multimode_draw_arrays GL_IBM_texture_mirrored_repeat GL_3DFX_texture_compression_FXT1 GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_transpose_matrix GL_EXT_blend_func_separate GL_EXT_fog_coord GL_EXT_multi_draw_arrays GL_EXT_secondary_color GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod_bias GL_INGR_blend_func_separate GL_NV_blend_square GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_env_combine4 GL_S3_s3tc GL_SUN_multi_draw_arrays GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_EXT_framebuffer_object GL_EXT_texture_compression_s3tc GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_MESA_window_pos GL_NV_packed_depth_stencil GL_NV_texture_rectangle GL_ARB_depth_texture GL_ARB_occlusion_query GL_ARB_shadow GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_window_pos GL_ATI_envmap_bumpmap GL_EXT_stencil_two_side GL_EXT_texture_cube_map GL_NV_depth_clamp GL_APPLE_packed_pixels GL_APPLE_vertex_array_object GL_ARB_draw_buffers GL_ARB_fragment_program GL_ARB_fragment_shader GL_ARB_shader_objects GL_ARB_vertex_program GL_ARB_vertex_shader GL_ATI_draw_buffers GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_MESA_pack_invert GL_NV_primitive_restart GL_ARB_depth_clamp GL_ARB_fragment_program_shadow GL_ARB_half_float_pixel GL_ARB_occlusion_query2 GL_ARB_point_sprite GL_ARB_shading_language_100 GL_ARB_sync GL_ARB_texture_non_power_of_two GL_ARB_vertex_buffer_object GL_ATI_blend_equation_separate GL_EXT_blend_equation_separate GL_OES_read_format GL_ARB_color_buffer_float GL_ARB_pixel_buffer_object GL_ARB_texture_compression_rgtc GL_ARB_texture_float GL_ARB_texture_rectangle GL_EXT_packed_float GL_EXT_pixel_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_shared_exponent GL_ARB_framebuffer_object GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_packed_depth_stencil GL_APPLE_object_purgeable GL_ARB_vertex_array_object GL_ATI_separate_stencil GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_gpu_program_parameters GL_EXT_texture_array GL_EXT_texture_integer GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_OES_EGL_image GL_ARB_copy_buffer GL_ARB_depth_buffer_float GL_ARB_draw_instanced GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_map_buffer_range GL_ARB_texture_rg GL_ARB_texture_swizzle GL_ARB_vertex_array_bgra GL_EXT_separate_shader_objects GL_EXT_texture_swizzle GL_EXT_vertex_array_bgra GL_NV_conditional_render GL_AMD_conservative_depth GL_AMD_draw_buffers_blend GL_AMD_seamless_cubemap_per_texture GL_ARB_ES2_compatibility GL_ARB_blend_func_extended GL_ARB_debug_output GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_explicit_attrib_location GL_ARB_fragment_coord_conventions GL_ARB_provoking_vertex GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_shader_texture_lod GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_multisample GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_uniform_buffer_object GL_ARB_vertex_type_2_10_10_10_rev GL_EXT_provoking_vertex GL_EXT_texture_snorm GL_MESA_texture_signed_rgba GL_ARB_get_program_binary GL_ARB_robustness GL_ARB_shader_bit_encoding GL_ARB_timer_query GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ARB_conservative_depth GL_ARB_internalformat_query GL_ARB_map_buffer_alignment GL_ARB_shader_atomic_counters GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_texture_storage GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_transform_feedback GL_AMD_shader_trinary_minmax GL_ARB_ES3_compatibility GL_ARB_clear_buffer_object GL_ARB_invalidate_subdata GL_ARB_texture_query_levels GL_ARB_texture_storage_multisample GL_ARB_vertex_attrib_binding GL_KHR_debug GL_ARB_texture_mirror_clamp_to_edge GL_ARB_vertex_type_10f_11f_11f_rev GL_EXT_shader_integer_mix "
  },
  {
   "description": "Window system binding vendor",
   "value": "SGI"
  },
  {
   "description": "Window system binding version",
   "value": "1.4"
  },
  {
   "description": "Window system binding extensions",
   "value": "GLX_ARB_create_context GLX_ARB_create_context_profile GLX_ARB_create_context_robustness GLX_ARB_fbconfig_float GLX_ARB_framebuffer_sRGB GLX_ARB_multisample GLX_EXT_create_context_es2_profile GLX_EXT_framebuffer_sRGB GLX_EXT_import_context GLX_EXT_texture_from_pixmap GLX_EXT_visual_info GLX_EXT_visual_rating GLX_MESA_copy_sub_buffer GLX_OML_swap_method GLX_SGI_swap_control GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGIX_visual_select_group GLX_INTEL_swap_event "
  },
  {
   "description": "Reset notification strategy",
   "value": "0x8252"
  }
 ],
 "featureStatus": {
  "featureStatus": {
   "2d_canvas": "unavailable_software",
   "3d_css": "unavailable_off",
   "compositing": "unavailable_software",
   "css_animation": "unavailable_software",
   "flash_3d": "unavailable_off",
   "flash_stage3d": "unavailable_off",
   "flash_stage3d_baseline": "unavailable_off",
   "multisampling": "unavailable_off",
   "texture_sharing": "unavailable_off",
   "video": "unavailable_software",
   "video_decode": "unavailable_software",
   "webgl": "unavailable_off"
  },
  "problems": [
   {
    "crBugs": [],
    "description": "GPU process was unable to boot: Features are disabled upon full but not preliminary GPU info.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     76703,
     164555,
     225200
    ],
    "description": "Intel mesa drivers are crash-prone.",
    "webkitBugs": []
   },
   {
    "crBugs": [],
    "description": "Accelerated 2d canvas is unstable in Linux at the moment.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     129848
    ],
    "description": "Stage3D is not supported on Linux.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     137247,
     133828
    ],
    "description": "Accelerated video decode is unavailable on Mac and Linux.",
    "webkitBugs": []
   }
  ],
  "workarounds": [
   "clear_alpha_in_readpixels",
   "disable_ext_occlusion_query",
   "set_texture_filter_before_generating_mipmap"
  ]
 }
} VM143:2
{
 "basic_info": [
  {
   "description": "Initialization time",
   "value": "65"
  },
  {
   "description": "Sandboxed",
   "value": false
  },
  {
   "description": "GPU0",
   "value": "VENDOR = 0x8086, DEVICE= 0x0d26"
  },
  {
   "description": "Optimus",
   "value": false
  },
  {
   "description": "AMD switchable",
   "value": false
  },
  {
   "description": "Driver vendor",
   "value": "Mesa"
  },
  {
   "description": "Driver version",
   "value": "10.1.3"
  },
  {
   "description": "Driver date",
   "value": ""
  },
  {
   "description": "Pixel shader version",
   "value": "1.30"
  },
  {
   "description": "Vertex shader version",
   "value": "1.30"
  },
  {
   "description": "Machine model",
   "value": ""
  },
  {
   "description": "GL version",
   "value": "3.0"
  },
  {
   "description": "GL_VENDOR",
   "value": "Intel Open Source Technology Center"
  },
  {
   "description": "GL_RENDERER",
   "value": "Mesa DRI Intel(R) Haswell Mobile "
  },
  {
   "description": "GL_VERSION",
   "value": "3.0 Mesa 10.1.3"
  },
  {
   "description": "GL_EXTENSIONS",
   "value": "GL_ARB_multisample GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_copy_texture GL_EXT_polygon_offset GL_EXT_subtexture GL_EXT_texture_object GL_EXT_vertex_array GL_EXT_compiled_vertex_array GL_EXT_texture GL_EXT_texture3D GL_IBM_rasterpos_clip GL_ARB_point_parameters GL_EXT_draw_range_elements GL_EXT_packed_pixels GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_separate_specular_color GL_EXT_texture_edge_clamp GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_ARB_framebuffer_sRGB GL_ARB_multitexture GL_EXT_framebuffer_sRGB GL_IBM_multimode_draw_arrays GL_IBM_texture_mirrored_repeat GL_3DFX_texture_compression_FXT1 GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_transpose_matrix GL_EXT_blend_func_separate GL_EXT_fog_coord GL_EXT_multi_draw_arrays GL_EXT_secondary_color GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod_bias GL_INGR_blend_func_separate GL_NV_blend_square GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_env_combine4 GL_S3_s3tc GL_SUN_multi_draw_arrays GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_EXT_framebuffer_object GL_EXT_texture_compression_s3tc GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_MESA_window_pos GL_NV_packed_depth_stencil GL_NV_texture_rectangle GL_ARB_depth_texture GL_ARB_occlusion_query GL_ARB_shadow GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_window_pos GL_ATI_envmap_bumpmap GL_EXT_stencil_two_side GL_EXT_texture_cube_map GL_NV_depth_clamp GL_APPLE_packed_pixels GL_APPLE_vertex_array_object GL_ARB_draw_buffers GL_ARB_fragment_program GL_ARB_fragment_shader GL_ARB_shader_objects GL_ARB_vertex_program GL_ARB_vertex_shader GL_ATI_draw_buffers GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_MESA_pack_invert GL_NV_primitive_restart GL_ARB_depth_clamp GL_ARB_fragment_program_shadow GL_ARB_half_float_pixel GL_ARB_occlusion_query2 GL_ARB_point_sprite GL_ARB_shading_language_100 GL_ARB_sync GL_ARB_texture_non_power_of_two GL_ARB_vertex_buffer_object GL_ATI_blend_equation_separate GL_EXT_blend_equation_separate GL_OES_read_format GL_ARB_color_buffer_float GL_ARB_pixel_buffer_object GL_ARB_texture_compression_rgtc GL_ARB_texture_float GL_ARB_texture_rectangle GL_EXT_packed_float GL_EXT_pixel_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_shared_exponent GL_ARB_framebuffer_object GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_packed_depth_stencil GL_APPLE_object_purgeable GL_ARB_vertex_array_object GL_ATI_separate_stencil GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_gpu_program_parameters GL_EXT_texture_array GL_EXT_texture_integer GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_OES_EGL_image GL_ARB_copy_buffer GL_ARB_depth_buffer_float GL_ARB_draw_instanced GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_map_buffer_range GL_ARB_texture_rg GL_ARB_texture_swizzle GL_ARB_vertex_array_bgra GL_EXT_separate_shader_objects GL_EXT_texture_swizzle GL_EXT_vertex_array_bgra GL_NV_conditional_render GL_AMD_conservative_depth GL_AMD_draw_buffers_blend GL_AMD_seamless_cubemap_per_texture GL_ARB_ES2_compatibility GL_ARB_blend_func_extended GL_ARB_debug_output GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_explicit_attrib_location GL_ARB_fragment_coord_conventions GL_ARB_provoking_vertex GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_shader_texture_lod GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_multisample GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_uniform_buffer_object GL_ARB_vertex_type_2_10_10_10_rev GL_EXT_provoking_vertex GL_EXT_texture_snorm GL_MESA_texture_signed_rgba GL_ARB_get_program_binary GL_ARB_robustness GL_ARB_shader_bit_encoding GL_ARB_timer_query GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ARB_conservative_depth GL_ARB_internalformat_query GL_ARB_map_buffer_alignment GL_ARB_shader_atomic_counters GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_texture_storage GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_transform_feedback GL_AMD_shader_trinary_minmax GL_ARB_ES3_compatibility GL_ARB_clear_buffer_object GL_ARB_invalidate_subdata GL_ARB_texture_query_levels GL_ARB_texture_storage_multisample GL_ARB_vertex_attrib_binding GL_KHR_debug GL_ARB_texture_mirror_clamp_to_edge GL_ARB_vertex_type_10f_11f_11f_rev GL_EXT_shader_integer_mix "
  },
  {
   "description": "Window system binding vendor",
   "value": "SGI"
  },
  {
   "description": "Window system binding version",
   "value": "1.4"
  },
  {
   "description": "Window system binding extensions",
   "value": "GLX_ARB_create_context GLX_ARB_create_context_profile GLX_ARB_create_context_robustness GLX_ARB_fbconfig_float GLX_ARB_framebuffer_sRGB GLX_ARB_multisample GLX_EXT_create_context_es2_profile GLX_EXT_framebuffer_sRGB GLX_EXT_import_context GLX_EXT_texture_from_pixmap GLX_EXT_visual_info GLX_EXT_visual_rating GLX_MESA_copy_sub_buffer GLX_OML_swap_method GLX_SGI_swap_control GLX_SGIS_multisample GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGIX_visual_select_group GLX_INTEL_swap_event "
  },
  {
   "description": "Reset notification strategy",
   "value": "0x8252"
  }
 ],
 "featureStatus": {
  "featureStatus": {
   "2d_canvas": "unavailable_software",
   "3d_css": "unavailable_off",
   "compositing": "unavailable_software",
   "css_animation": "unavailable_software",
   "flash_3d": "unavailable_off",
   "flash_stage3d": "unavailable_off",
   "flash_stage3d_baseline": "unavailable_off",
   "multisampling": "unavailable_off",
   "texture_sharing": "unavailable_off",
   "video": "unavailable_software",
   "video_decode": "unavailable_software",
   "webgl": "unavailable_off"
  },
  "problems": [
   {
    "crBugs": [],
    "description": "GPU process was unable to boot: Features are disabled upon full but not preliminary GPU info.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     76703,
     164555,
     225200
    ],
    "description": "Intel mesa drivers are crash-prone.",
    "webkitBugs": []
   },
   {
    "crBugs": [],
    "description": "Accelerated 2d canvas is unstable in Linux at the moment.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     129848
    ],
    "description": "Stage3D is not supported on Linux.",
    "webkitBugs": []
   },
   {
    "crBugs": [
     137247,
     133828
    ],
    "description": "Accelerated video decode is unavailable on Mac and Linux.",
    "webkitBugs": []
   }
  ],
  "workarounds": [
   "clear_alpha_in_readpixels",
   "disable_ext_occlusion_query",
   "set_texture_filter_before_generating_mipmap"
  ]
 }
}

[petre2dor]

In order to enable Webgl in chromium I had to do this http://askubuntu.com/questions/299345/how-to-enable-webgl-in-chrome-on-ubuntu/299346#299346
Can I do something similar for webkit?

[rc1]

Having the same problem here. I am running with (in package.json):

"chromium-args": "--enable-webgl --ignore-gpu-blacklist"

Using with the nouveau drivers and a NVIDIA GeForce GT 720. With the above arguments in Chrome WebGL appears to be working.

Some questions I be greatful if anyone on this issue could answer:

1. Did it work before upgrading to 14.04?
2. Are you on the OS driver too or native NVidia drives? Does this make a difference?

Hoping to try two myself soon.

[rc1]

please excuse the --disable-javascript that was to check the args were being applied