Videos do not play on Lynda.com
Reported by
wi...@willynolan.com,
Sep 14 2017
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Issue descriptionUserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/60.0.3112.113 Chrome/60.0.3112.113 Safari/537.36 Example URL: Lynda.com Steps to reproduce the problem: 1. Go to Lynda.com and try to play any videos from a course 2. Unfortunately you need an account to do this, but you can also try the preview videos that are free. What is the expected behavior? Videos should appear and play back. What went wrong? No videos play back. Additionally, a list of videos that should appear does not. Did this work before? N/A Is it a problem with Flash or HTML5? HTML5 Does this work in other browsers? Yes Chrome version: 60.0.3112.113 Channel: n/a OS Version: Ubuntu 16.0.4 Flash Version: Contents of chrome://gpu: Graphics Feature Status Canvas: Hardware accelerated CheckerImaging: Disabled Flash: Hardware accelerated Flash Stage3D: Hardware accelerated Flash Stage3D Baseline profile: Hardware accelerated Compositing: Hardware accelerated Multiple Raster Threads: Enabled Native GpuMemoryBuffers: Software only. Hardware acceleration disabled Rasterization: Software only. Hardware acceleration disabled Video Decode: Software only, hardware acceleration unavailable Video Encode: Software only, hardware acceleration unavailable WebGL: Hardware accelerated WebGL2: Hardware accelerated Driver Bug Workarounds clear_uniforms_before_first_program_use disable_discard_framebuffer disable_framebuffer_cmaa force_cube_complete init_gl_position_in_vertex_shader init_vertex_attributes pack_parameters_workaround_with_pack_buffer scalarize_vec_and_mat_constructor_args unpack_alignment_workaround_with_unpack_buffer unpack_overlapping_rows_separately_unpack_buffer use_virtualized_gl_contexts Problems Detected Accelerated video decode is unavailable on Linux: 137247 Disabled Features: accelerated_video_decode Accelerated video encode is unavailable on Linux Disabled Features: accelerated_video_encode Program link fails in NVIDIA Linux if gl_Position is not set: 286468 Applied Workarounds: init_gl_position_in_vertex_shader Clear uniforms before first program use on all platforms: 124764, 349137 Applied Workarounds: clear_uniforms_before_first_program_use Linux NVIDIA drivers don't have the correct defaults for vertex attributes: 351528 Applied Workarounds: init_vertex_attributes Always rewrite vec/mat constructors to be consistent: 398694 Applied Workarounds: scalarize_vec_and_mat_constructor_args MakeCurrent is slow on Linux with NVIDIA drivers: 449150, 514510 Applied Workarounds: use_virtualized_gl_contexts NVIDIA fails glReadPixels from incomplete cube map texture: 518889 Applied Workarounds: force_cube_complete Pack parameters work incorrectly with pack buffer bound: 563714 Applied Workarounds: pack_parameters_workaround_with_pack_buffer Alignment works incorrectly with unpack buffer bound: 563714 Applied Workarounds: unpack_alignment_workaround_with_unpack_buffer Framebuffer discarding can hurt performance on non-tilers: 570897 Applied Workarounds: disable_discard_framebuffer Unpacking overlapping rows from unpack buffers is unstable on NVIDIA GL driver: 596774 Applied Workarounds: unpack_overlapping_rows_separately_unpack_buffer Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198 Applied Workarounds: disable_framebuffer_cmaa Disable KHR_blend_equation_advanced until cc shaders are updated: 661715 Accelerated rasterization has been disabled, either via blacklist, about:flags or the command line. Disabled Features: rasterization Native GpuMemoryBuffers have been disabled, either via about:flags or command line. Disabled Features: native_gpu_memory_buffers Checker-imaging has been disabled via finch trial or the command line. Disabled Features: checker_imaging Version Information Data exported 9/13/2017, 9:56:09 PM Chrome version Chrome/60.0.3112.113 Operating system Linux 4.4.0-83-generic Software rendering list version 13.9 Driver bug list version 10.94 ANGLE commit id unknown hash 2D graphics backend Skia/60 d1f2d15b36f6a6a9d199581b998a7ca924a1f1a8- Command Line /usr/lib/chromium-browser/chromium-browser --enable-pinch --flag-switches-begin --flag-switches-end Driver Information Initialization time 181 In-process GPU false Passthrough Command Decoder false Supports overlays false Sandboxed true GPU0 VENDOR = 0x10de, DEVICE= 0x1187 Optimus false Optimus false AMD switchable false Driver vendor Nvidia Driver version 375.66 Driver date Pixel shader version 4.50 Vertex shader version 4.50 Max. MSAA samples 32 Machine model name Machine model version GL_VENDOR NVIDIA Corporation GL_RENDERER GeForce GTX 760/PCIe/SSE2 GL_VERSION 4.5.0 NVIDIA 375.66 GL_EXTENSIONS GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture 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_clip_control GL_ARB_color_buffer_float GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility 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GL_NV_uniform_buffer_unified_memory 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_NVX_conditional_render GL_NVX_gpu_memory_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent Window system binding vendor NVIDIA Corporation Window system binding version 1.4 Window system binding extensions GLX_EXT_visual_info GLX_EXT_visual_rating GLX_EXT_import_context GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGI_video_sync GLX_SGI_swap_control GLX_EXT_swap_control GLX_EXT_swap_control_tear GLX_EXT_texture_from_pixmap GLX_EXT_buffer_age GLX_ARB_create_context GLX_ARB_create_context_profile GLX_EXT_create_context_es_profile GLX_EXT_create_context_es2_profile GLX_ARB_create_context_robustness GLX_NV_delay_before_swap GLX_EXT_stereo_tree GLX_EXT_libglvnd GLX_ARB_context_flush_control GLX_NV_robustness_video_memory_purge GLX_ARB_multisample GLX_NV_float_buffer GLX_ARB_fbconfig_float GLX_EXT_framebuffer_sRGB GLX_NV_multisample_coverage GLX_NV_copy_image Window manager GNOME Shell XDG_CURRENT_DESKTOP GNOME GDMSESSION gnome Compositing manager Yes Direct rendering Yes Reset notification strategy 0x8252 GPU process crash count 0 System visual ID 33 RGBA visual ID 194 Compositor Information Tile Update Mode One-copy Partial Raster Enabled GpuMemoryBuffers Status ATC Software only ATCIA Software only DXT1 Software only DXT5 Software only ETC1 Software only R_8 Software only RG_88 Software only BGR_565 Software only RGBA_4444 Software only RGBX_8888 Software only RGBA_8888 Software only BGRX_8888 Software only BGRA_8888 Software only RGBA_F16 Software only YVU_420 Software only YUV_420_BIPLANAR Software only UYVY_422 Software only Log Messages [2298:2345:0913/215503.666339:WARNING:x11_util.cc(1366)] : X error received: serial 9824, error_code 3 (BadWindow), request_code 4, minor_code 0 (Unknown) [2298:2345:0913/215554.611308:WARNING:x11_util.cc(1366)] : X error received: serial 11770, error_code 3 (BadWindow), request_code 4, minor_code 0 (Unknown) [2298:2345:0913/215557.943729:WARNING:x11_util.cc(1366)] : X error received: serial 11800, error_code 3 (BadWindow), request_code 4, minor_code 0 (Unknown) A very good example and description of this bug is here https://askubuntu.com/questions/823835/how-to-play-videos-on-lynda-com
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Sep 14 2017
You seem to be using Ubuntu Chromium and not Chrome. Can you try using Chrome from here? https://www.google.com/chrome/browser/desktop/index.html Chromium does not include support for proprietary codecs like H264 which that site seems to require. I don't know why / how Ubuntu has configured it this way.
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Sep 14 2017
Yes, this works fine on Chrome but I want it to work on Chromium. You mention this being a problem with Ubuntu, should I report it to them? It works on other browsers with Ubuntu so I am not sure why this would be a problem with the OS. Is it possible (i.e. if I build Chromium myself) to include support for proprietary codecs?
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Sep 14 2017
Yes you can set ffmpeg_branding="Chrome" and proprietary_codecs=true when building to enable support for these codecs.
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Sep 14 2017
Sounds good enough for me. From a UX perspective it would be great if there were some sort of warning as to why these videos fail but I guess this issue can be closed now. |
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Comment 1 by nyerramilli@chromium.org
, Sep 14 2017