UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Example URL:
Any embedded

Steps to reproduce the problem:
1. go to a webpage with embedded YouTube video
2. note black box where video is
3. panic

What is the expected behavior?
Video should be displayed with standard YouTube play button

What went wrong?
No video

Did this work before? Yes Don't know

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? N/A

Chrome version: 56.0.2924.87  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 24.0 r0

Contents of chrome://gpu: 
Graphics Feature Status
Canvas: Software only, hardware acceleration unavailable
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 disabled
Video Encode: Hardware accelerated
VPx Video Decode: Software only. Hardware acceleration disabled
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
Driver Bug Workarounds
clear_uniforms_before_first_program_use
disable_direct_composition
disable_discard_framebuffer
disable_dxgi_zero_copy_video
disable_framebuffer_cmaa
exit_on_context_lost
scalarize_vec_and_mat_constructor_args
Problems Detected
VPx decoding isn't supported before Windows 10 anniversary update.: 616318
Disabled Features: accelerated_vpx_decode
GPU rasterization should only be enabled on NVIDIA Pascal and Maxwell, Intel Broadwell+, and AMD RX-R5 GPUs for now.: 643850
Disabled Features: gpu_rasterization
Some drivers are unable to reset the D3D device in the GPU process sandbox
Applied Workarounds: exit_on_context_lost
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Framebuffer discarding can hurt performance on non-tilers: 570897
Applied Workarounds: disable_discard_framebuffer
Direct composition flashes black initially on Win <10: 588588
Applied Workarounds: disable_direct_composition
Zero copy DXGI video hangs on shutdown on Win < 8.1: 621190
Applied Workarounds: disable_dxgi_zero_copy_video
Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198
Applied Workarounds: disable_framebuffer_cmaa
Zero-copy NV12 video displays incorrect colors on NVIDIA drivers.: 635319
Applied Workarounds: disable_dxgi_zero_copy_video
Accelerated video decode has been disabled, either via blacklist, about:flags or the command line.
Disabled Features: video_decode
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
Accelerated VPx video decode has been disabled, either via blacklist or the command line.
Disabled Features: vpx_decode
Version Information
Data exported	06/02/2017, 13:38:19
Chrome version	Chrome/56.0.2924.87
Operating system	Windows NT 6.1.7601 SP1
Software rendering list version	12.06
Driver bug list version	9.24
ANGLE commit id	a4aaa2de57dc
2D graphics backend	Skia/56 bf2d9e02d58ea01f1c239f7e2fc024cba140ccb1
Command Line Args	Files (x86)\Google\Chrome\Application\chrome.exe" --flag-switches-begin --disable-accelerated-video-decode --site-per-process --flag-switches-end
Driver Information
Initialization time	0
In-process GPU	true
Sandboxed	false
GPU0	VENDOR = 0x10de, DEVICE= 0x11fc
GPU1	VENDOR = 0x8086, DEVICE= 0x0416
Optimus	true
AMD switchable	false
Desktop compositing	Aero Glass
Diagonal Monitor Size of \\.\DISPLAY2	22.9"
Diagonal Monitor Size of \\.\DISPLAY1	23.7"
Driver vendor	NVIDIA
Driver version	10.18.13.5490
Driver date	4-5-2016
Pixel shader version	
Vertex shader version	
Max. MSAA samples	
Machine model name	
Machine model version	
GL_VENDOR	
GL_RENDERER	
GL_VERSION	
GL_EXTENSIONS	
Disabled Extensions	
Window system binding vendor	
Window system binding version	
Window system binding extensions	
Direct rendering	Yes
Reset notification strategy	0x0000
GPU process crash count	0
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
YVU_420	Software only
YUV_420_BIPLANAR	Software only
UYVY_422	Software only
Diagnostics
... loading ...
Log Messages
GpuProcessHostUIShim: The GPU process exited normally. Everything is okay.