I've tested downloading the same video it's impossible to see without setting to false and playing locally, 1280 x 720 x 60 fps, runs smoothly in Windows Media Player, and VLC with OpenGL and DXVA 2.0 enabled. HDD: Seagate Momentus 7200.2 (7200 RPM, 500 GB SATA II) GPU: ATI Radeon HD 3200 (256 MB, ATI Avivo supported including DVXA 2.0, 2012 drivers v8.961.0.0) I suppose this happens because they have blacklisted (?) some GPU's because they dont support DXVA 2.0, the problem is that GPU's like mine support it and can decode this kind of stuff (locally and over the web), leading to this weird behaviour.ĬPU: AMD Athlon X2 QL-65 2.1 Ghz (Dual Core) I've discovered that, in some systems, FF41 sets to true instead of false, leading to slowdowns and high CPU usage while playing HTML5 videos. Sorry Gary, how can I install that build you mention to test if the big is gone in newest builds? GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) User Agent: Mozilla/5.0 (Windows NT 10.0 Win64 圆4 rv:43.0) Gecko/20100101 Firefox/43.0Īdapter Description: AMD Radeon R9 200 / HD 7900 SeriesĪdapter Drivers: aticf圆4 aticf圆4 aticf圆4 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidx圆4 atidx圆4 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64Īsynchronous Pan/Zoom: wheel input enabledĬlearType Parameters: D D I played the example video in the OP and my CPU utilization was 1%. WebGL Renderer - Intel Open Source Technology Center - Mesa DRI Intel(R) Sandybridge Mobile Vendor ID - Intel Open Source Technology Center GPU Accelerated Windows - 0/1 Basic (OMTC) System has a dual-graphics(Intel+GeForce GT 525M - Optimus tech running Bumblebee)Īdapter Description - Intel Open Source Technology Center - Mesa DRI Intel(R) Sandybridge Mobileĭevice ID - Mesa DRI Intel(R) Sandybridge Mobileĭriver Version - 3.0 Mesa 10.6.0 (git-5d327b3) I looked into the process list and Web Content was causing this.Īlso if it might be of any help Web Content was related to this command - "/home/USER/firefoxN/plugin-container -greomni /home/USER/firefoxN/omni.ja -appomni /home/USER/firefoxN/browser/omni.ja -appdir /home/USER/firefoxN/browser"įor me on YouTube except webM everything else is enabled. On 720p60fps on Linux (Fedora 22) the CPU Usage spikes very very high and keeps fluctuating. I've also experienced a similar issue on Nightly 42.0a1 () after becoming aware by a reddit user's comment.
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