User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0 Build ID: 20150313030231 Steps to reproduce: 1) Open any DailyMotion video page. 2) Try to scroll the page via smooth scrolling or auto scrolling. 3) Observe the stutters and jank. *Note: Observed the same behavior with and without the new HW vsync. Actual results: The scrolling is jerky. The video content is jumping while scrolling the page. Expected results: The scrolling should be smooth. The video content shouldn't jump while scrolling.
Confirmed. Only happens in Nightly. The latest Firefox doesn't have this issue, only Nightly has it. Also, it doesn't happen on Chrome or Internet Explorer! It might be less noticeable if your PC is fast.
Please post your Graphic section from about:support. Is it still reproducible if you set to "false" these 3 options in about:config? -gfx.vsync.compositor -gfx.vsync.hw-vsync.enabled -gfx.vsync.refreshdriver
3 years ago
3 years ago
Yes, even with these entries set to "false" I can see the stutter. Graphics section from about:support: Graphics -------- Adapter Description: NVIDIA GeForce GTX 660 Ti Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Adapter RAM: 2048 Device ID: 0x1183 Direct2D Enabled: true DirectWrite Enabled: true (6.3.9600.17415) Driver Date: 2-5-2015 Driver Version: 126.96.36.19952 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 35561458 Vendor ID: 0x10de WebGL Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 660 Ti Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0
Can you still reproduce the issue with clean new fresh profile without any addons and plugins?
Yes, and I have some new finding regarding this issue: 1) It happens *only* when the video is in the view port, i.e., scrolling at the bottom of the page is a lot smoother (or you can say, 100% smooth for the record). 2) It seems that when the video is in the view port (being at the top of page), scrolling the tab bar causes the video to be drawn completely blank. the video restores upon a page scroll. Hope this helps to identify the issue a bit better.
I could reproduce on Nightly 40.0a1 3015-04-01 under Win 7 64-bit. The Shockwave Flash plugin has crashed (not reproduced on another machine with AMD Radeon HD 5450). Graphics Adapter Description Intel(R) HD Graphics Adapter Drivers igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Adapter RAM Unknown Device ID 0x0152 Direct2D Enabled true DirectWrite Enabled true (6.2.9200.16440) Driver Date 10-31-2013 Driver Version 10.18.10.3345 GPU #2 Active false GPU Accelerated Windows 3/3 Direct3D 11 (OMTC) Subsys ID 00000000 Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote true AzureCanvasBackend direct2d 1.1 AzureContentBackend direct2d 1.1 AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0
Can you still reproduce this? I'm not able to with nightly build, new profile, Intel HD 3000 graphics. (I also could try NVDIA quadro)
Unable to reproduce the issue with the latest Nightly. It seems like the site isn't using flash player anymore, so the issue can be closed.