[Webkit-unassigned] [Bug 39139] New: Pages that use hardware acceleration don't repaint after waking computer from sleep

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=39139

           Summary: Pages that use hardware acceleration don't repaint
                    after waking computer from sleep
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://webkit.org/blog-files/3d-transforms/poster-circ
                    le.html
        OS/Version: Windows XP
            Status: NEW
          Keywords: NeedsRadar, PlatformOnly
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aroben at apple.com
                CC: simon.fraser at apple.com, cmarrin at apple.com,
                    enrica at apple.com


To reproduce:

1. Go to <http://webkit.org/blog-files/3d-transforms/poster-circle.html>
2. Put your computer to sleep
3. Wake the computer back up

The page never repaints (until you navigate somewhere else, or reload).

The problem is that WKCACFLayerRenderer doesn't respond to lost devices correctly. See <http://msdn.microsoft.com/en-us/library/bb174714(v=VS.85).aspx>.

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