[Webkit-unassigned] [Bug 39312] New: REGRESSION?: Graphics corruption when watching video on vimcasts.org

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=39312

           Summary: REGRESSION?: Graphics corruption when watching video
                    on vimcasts.org
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://vimcasts.org/episodes/formatting-text-with-par/
        OS/Version: Windows XP
            Status: NEW
          Keywords: NeedsRadar, PlatformOnly
          Severity: Normal
          Priority: P2
         Component: Media Elements
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aroben at apple.com
                CC: sfalken at apple.com, simon.fraser at apple.com,
                    cmarrin at apple.com, enrica at apple.com,
                    jer.noble at apple.com


To reproduce:

1. Go to http://vimcasts.org/episodes/formatting-text-with-par/
2. Click on the video to start it playing
3. Bring some other application in front of Safari
4. Wait

Eventually, Safari starts painting over the other application. If you then click on Safari to bring it to the front, Safari doesn't completely paint. There are various other bad symptoms that can be observed at this point (e.g., the system menu (obtained by right-clicking on the window's taskbar item) is all black). The only way to fix it is to quit and relaunch Safari.

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