1218069 - GPU video acceleration fails with 60FPS videos

Status: RESOLVED DUPLICATE of bug 1254625

(Core :: Audio/Video: Playback, defect, P5)

Description

[Sergey]

GPU acceleration suddenly disables during 60fps HD or FullHD video playback on YouTube and video starts stuttering because of weak CPU (Athlon +5400). Also, video acceleration stops if I click the "pause" button and after some period of time click "play" on the same video. My video card is NVIDIA GTX650Ti. I have been experiencing this bug for a long time. The same happens with my Intel64 notebook with integrated Intel HD graphics (Windows 7). This is not happening with the Microsoft Edge browser.

Comment 1

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Does this happen in nightly?

Comment 2

[Sergey]

(In reply to Anthony Jones (:kentuckyfriedtakahe, :k17e) from comment #1)
> Does this happen in nightly?

In nightly 45.0a1 video acceleration doesn't work at all even with standard 25 fps videos. Works in aurora version (44.0a2) as usual except for 60 fps.

Comment 3

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Can you post the graphics section of about:support?

Comment 4

[Sergey]

(In reply to Anthony Jones (:kentuckyfriedtakahe, :k17e) from comment #3)
> Can you post the graphics section of about:support?

Yes, here. Also as acceleration fails, video buffers again and dynamic range switches from 16-235 to 0-255.

Adapter Description	NVIDIA GeForce GTX 560 Ti
Adapter Drivers	nvd3dum,nvwgf2um,nvwgf2um,nvwgf2um
Adapter RAM	1024
Asynchronous Pan/Zoom	none
Device ID	0x1200
Direct2D Enabled	true
DirectWrite Enabled	true (10.0.10586.0)
Driver Date	11-5-2015
Driver Version	10.18.13.5891
GPU #2 Active	false
GPU Accelerated Windows	1/1 Direct3D 11 (OMTC)
Subsys ID	00000000
Supports Hardware H264 Decoding	Yes
Vendor ID	0x10de
WebGL Renderer	Google Inc. -- ANGLE (NVIDIA GeForce GTX 560 Ti Direct3D11 vs_5_0 ps_5_0)
windowLayerManagerRemote	true
AzureCanvasBackend	direct2d 1.1
AzureContentBackend	direct2d 1.1
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0

Comment 5

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

This is an old bug which I believe is fixed, so I'll dup it. Please re-open if this is still an issue.