1335391 - Hardware Acceleration Issue/Low performance in youtube videos

Status: RESOLVED DUPLICATE of bug 1314458

(Core :: Audio/Video: Playback, defect)

Description

[chekkm8]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20170124094647

Steps to reproduce:

Any youtube video I play seems to have low fps with hardware accel enabled. I dont remember exactly when this started, it could have been after a firefox update or an nvidia driver update or a windows 10 update (I use both firefox betas and nvidia beta/hotfix drivers). I'm using 52.0b1 (64-bit), also had it at the 32 bit beta.  I'm using nvidia 378.49 on a gtx 1080. IE and EDGE work perfectly fine. Also tried nvidia 376.33. https://www.youtube.com/html5 shows everything supported. 60 fps videos look smoother, still at some points it looks more like 30fps than 60. I am using dual monitors. I've tried with one disabled. Ive tempered with nvidia settings, (prefer maximum performance for firefox for example) nothing worked.

I have made a NEW profile and the problem persists so it mustn't be any addon etc. Unchecking hardware acceleration makes the playback smooth

Some more setup info http://imgur.com/a/ZFr1P


Actual results:

Very slow performance from a gtx 1080 in youtube videos. 


Expected results:

Same playback smoothness as IE or EDGE

Comment 1

[chekkm8]

about:support Graphics section

Features
Compositing	Direct3D 11
Asynchronous Pan/Zoom	none
WebGL Renderer	Google Inc. -- ANGLE (NVIDIA GeForce GTX 1080 Direct3D11 vs_5_0 ps_5_0)
WebGL2 Renderer	Google Inc. -- ANGLE (NVIDIA GeForce GTX 1080 Direct3D11 vs_5_0 ps_5_0)
Hardware H264 Decoding	Yes; Using D3D11 API
Audio Backend	wasapi
Direct2D	true
DirectWrite	true (10.0.14393.351)
GPU #1
Active	Yes
Description	NVIDIA GeForce GTX 1080
Vendor ID	0x10de
Device ID	0x1b80
Driver Version	21.21.13.7633
Driver Date	12-11-2016
Drivers	C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvd3dumx,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2umx,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2umx,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2umx C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvd3dum,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2um,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2um,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2um
Subsys ID	61833842
RAM	8192
Diagnostics
ClearType Parameters	Gamma: 2.2 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400
AzureCanvasAccelerated	0
AzureCanvasBackend	direct2d 1.1
AzureContentBackend	direct2d 1.1
AzureFallbackCanvasBackend	cairo
ClearType Parameters	Gamma: 2.2 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400
Decision Log
D3D9_COMPOSITING	
disabled by default: Disabled by default

Comment 2

[chekkm8]

Its SOLVED. Changing these TRUE default values to FALSE in about:config worked. media.encoder.webm.enabled;false media.mediasource.webm.audio.enabled;false media.webm.enabled;false

Comment 3

[chekkm8]

media.webm.enabled to false was enough

Comment 4

[Jean-Yves Avenard [:jya]]

that's no workaround.

most likely the same as bug 1314458

Comment 5

[Jean-Yves Avenard [:jya]]

ins(In reply to chekkm8 from comment #3)
> media.webm.enabled to false was enough

instead you should disable the VP9 HW decoder with media.wmf.vp9.enabled = false

Comment 6

[chekkm8]

(In reply to Jean-Yves Avenard [:jya] from comment #5)
> ins(In reply to chekkm8 from comment #3)
> > media.webm.enabled to false was enough
> 
> instead you should disable the VP9 HW decoder with media.wmf.vp9.enabled =
> false

Issue stopped with media.wmf.vp9.enabled = false