[Webkit-unassigned] [Bug 165246] New: [GTK] Fails to draw in Wayland with enabled compositing mode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=165246

            Bug ID: 165246
           Summary: [GTK] Fails to draw in Wayland with enabled
                    compositing mode
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcrha at redhat.com
                CC: bugs-noreply at webkitgtk.org

This had been reported downstream:
https://bugzilla.redhat.com/show_bug.cgi?id=1398806

and also in GNOME bugzilla:
https://bugzilla.gnome.org/show_bug.cgi?id=775372

The compositing mode totally breaks whole window rendering under Wayland for some users. The above bugs have screenshots. Disabling it with WEBKIT_DISABLE_COMPOSITING_MODE=1 works.

There are also other side effects of this change, again not for everyone, see:
https://bugzilla.gnome.org/show_bug.cgi?id=774067

It would be nice to have an API to disable it, instead of modifying environment variables in the code.

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