[Webkit-unassigned] [Bug 135298] New: [GTK] Extremely jerky HD video playback with webkitgtk2 2.4.4 and intel HD 3000

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=135298

           Summary: [GTK] Extremely jerky HD video playback with
                    webkitgtk2 2.4.4 and intel HD 3000
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P3
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: lviggiani at gmail.com


Created an attachment (id=235531)
 --> (https://bugs.webkit.org/attachment.cgi?id=235531&action=review)
Test program

I'm on Arch Linux 64Bit and GNOME Shell 3.12.
Using Gnome Web (Epiphany) or by compilig the attached vala test program and opening youtube.com, If I try to playback any hd video either in windowed or full screen mode, playback is extremely jerky.
The same video plays smoothly on chrome or firefox.

That's the user agent:

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/538.15 (KHTML, like Gecko) Version/8.0 Safari/538.15 Epiphany/3.12.1

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