When Lightspark 0.7.2 plays a YouTube video [1], it plays the sound only, but no video. It does not even show its UI.
I am on Gentoo/Linux and have Lightspark compiled with USE="curl ffmpeg gles nsplugin pulseaudio rtmp sdl -profile".
[1] http://youtu.be/uhc4gUxjrKI
# fglrxinfo
display: :0 screen: 0
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Radeon HD 5670
OpenGL version string: 4.2.12172 Compatibility Profile Context 8.93
# glxinfo
name of display: :0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: ATI
server glx version string: 1.4
server glx extensions:
GLX_ARB_multisample, GLX_EXT_import_context, GLX_EXT_texture_from_pixmap,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_OML_swap_method,
GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGIS_multisample,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group
client glx vendor string: ATI
client glx version string: 1.4
client glx extensions:
GLX_ARB_create_context, GLX_ARB_create_context_profile,
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_swap_control, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_MESA_allocate_memory, GLX_MESA_copy_sub_buffer, GLX_MESA_swap_control,
GLX_MESA_swap_frame_usage, GLX_NV_swap_group, GLX_OML_swap_method,
GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGIX_swap_barrier, GLX_SGIX_swap_group, GLX_SGIX_visual_select_group,
GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
GLX_ARB_fbconfig_float, GLX_AMD_gpu_association
GLX version: 1.4
GLX extensions:
GLX_ARB_create_context, GLX_ARB_create_context_profile,
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_swap_control, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_MESA_swap_control, GLX_NV_swap_group, GLX_OML_swap_method,
GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGIX_swap_barrier, GLX_SGIX_swap_group, GLX_SGIX_visual_select_group,
GLX_EXT_texture_from_pixmap
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: ATI Radeon HD 5670
OpenGL version string: 4.2.12172 Compatibility Profile Context 8.93
OpenGL shading language version string: 4.20
OpenGL extensions:
GL_AMDX_debug_output, GL_AMDX_vertex_shader_tessellator,
GL_AMD_bus_addressable_memory, GL_AMD_conservative_depth,
GL_AMD_debug_output, GL_AMD_depth_clamp_separate,
GL_AMD_draw_buffers_blend, GL_AMD_multi_draw_indirect,
GL_AMD_name_gen_delete, GL_AMD_performance_monitor, GL_AMD_pinned_memory,
GL_AMD_query_buffer_object, GL_AMD_sample_positions,
GL_AMD_seamless_cubemap_per_texture, GL_AMD_shader_stencil_export,
GL_AMD_shader_trace, GL_AMD_texture_cube_map_array,
GL_AMD_texture_texture4, GL_AMD_transform_feedback3_lines_triangles,
GL_AMD_vertex_shader_layer, GL_AMD_vertex_shader_tessellator,
GL_AMD_vertex_shader_viewport_index, GL_ARB_ES2_compatibility,
GL_ARB_ES3_compatibility, GL_ARB_arrays_of_arrays, GL_ARB_base_instance,
GL_ARB_blend_func_extended, GL_ARB_clear_buffer_object,
GL_ARB_color_buffer_float, GL_ARB_compatibility,
GL_ARB_compressed_texture_pixel_storage, GL_ARB_conservative_depth,
GL_ARB_copy_buffer, 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_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_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_instanced_arrays, GL_ARB_internalformat_query,
GL_ARB_invalidate_subdata, GL_ARB_map_buffer_alignment,
GL_ARB_map_buffer_range, 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_provoking_vertex, GL_ARB_sample_shading, GL_ARB_sampler_objects,
GL_ARB_seamless_cube_map, GL_ARB_separate_shader_objects,
GL_ARB_shader_atomic_counters, GL_ARB_shader_bit_encoding,
GL_ARB_shader_image_load_store, GL_ARB_shader_image_size,
GL_ARB_shader_objects, GL_ARB_shader_precision,
GL_ARB_shader_stencil_export, GL_ARB_shader_subroutine,
GL_ARB_shader_texture_lod, GL_ARB_shading_language_100,
GL_ARB_shading_language_420pack, GL_ARB_shading_language_packing,
GL_ARB_shadow, GL_ARB_shadow_ambient, 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_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_snorm, GL_ARB_texture_storage,
GL_ARB_texture_storage_multisample, 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_buffer_object, GL_ARB_vertex_program, GL_ARB_vertex_shader,
GL_ARB_vertex_type_2_10_10_10_rev, GL_ARB_viewport_array,
GL_ARB_window_pos, GL_ATI_draw_buffers, GL_ATI_envmap_bumpmap,
GL_ATI_fragment_shader, GL_ATI_meminfo, GL_ATI_separate_stencil,
GL_ATI_texture_compression_3dc, GL_ATI_texture_env_combine3,
GL_ATI_texture_float, GL_ATI_texture_mirror_once, 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_copy_buffer, GL_EXT_copy_texture, 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_object, GL_EXT_framebuffer_sRGB,
GL_EXT_geometry_shader4, GL_EXT_gpu_program_parameters,
GL_EXT_gpu_shader4, GL_EXT_histogram, 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_specular_color, GL_EXT_shader_image_load_store,
GL_EXT_shadow_funcs, GL_EXT_stencil_wrap, GL_EXT_subtexture,
GL_EXT_texgen_reflection, GL_EXT_texture3D, GL_EXT_texture_array,
GL_EXT_texture_buffer_object, GL_EXT_texture_compression_bptc,
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_rectangle, GL_EXT_texture_sRGB,
GL_EXT_texture_sRGB_decode, GL_EXT_texture_shared_exponent,
GL_EXT_texture_snorm, GL_EXT_texture_storage, GL_EXT_texture_swizzle,
GL_EXT_timer_query, GL_EXT_transform_feedback, GL_EXT_vertex_array,
GL_EXT_vertex_array_bgra, GL_EXT_vertex_attrib_64bit,
GL_IBM_texture_mirrored_repeat, GL_KTX_buffer_region, GL_NV_blend_square,
GL_NV_conditional_render, GL_NV_copy_depth_to_color, GL_NV_copy_image,
GL_NV_explicit_multisample, GL_NV_float_buffer, GL_NV_half_float,
GL_NV_primitive_restart, GL_NV_texgen_reflection, GL_NV_texture_barrier,
GL_SGIS_generate_mipmap, GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod,
GL_SUN_multi_draw_arrays, GL_WIN_swap_hint
Setting USE=-gles does not show this issue. So maybe GLES support is broken with my drivers. Is there a way to detect this and fallback to desktop GL?