[Webkit-unassigned] [Bug 160491] New: [GTK] Bad performance in accelerated compositing mode with the modesetting intel driver and DRI3 enabled

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Aug 2 23:53:14 PDT 2016


https://bugs.webkit.org/show_bug.cgi?id=160491

            Bug ID: 160491
           Summary: [GTK] Bad performance in accelerated compositing mode
                    with the modesetting intel driver and DRI3 enabled
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: Gtk
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bugs-noreply at webkitgtk.org

This is becoming the default in several linux distributions and it makes WebKitGTK+ unusable in accelerated compositing mode, which is now always enabled because since we switched to use the threaded compositor. The problem seems to be an optimization of the intel driver for windows that are offscreen, and our redirected window is always positioned at ScreenWidth + 1, 0.

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