[Webkit-unassigned] [Bug 193972] New: [GTK] Temporarily switch default hardware acceleration policy to WEBKIT_HARDWARE_ACCELERATION_POLICY_NEVER

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193972

            Bug ID: 193972
           Summary: [GTK] Temporarily switch default hardware acceleration
                    policy to WEBKIT_HARDWARE_ACCELERATION_POLICY_NEVER
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org, magomez at igalia.com,
                    zan at falconsigh.net
            Blocks: 192523

In bug #192523 we are tracking a few issues with accelerated compositing mode. In particular, I consider bug #192522 a blocker for 2.24. It's not a regression in WebKit, but somewhere else in the graphics stack, but it will probably soon be visible to users so we'll have to deal with it now.

Of course I don't know how to fix these issues, and I don't think we should release in this state, and we've reached the end of the release cycle, so I'm left with unhappily suggesting that we switch the default WebKitHardwareAccelerationPolicy to WEBKIT_HARDWARE_ACCELERATION_POLICY_NEVER, at least temporarily. If graphics developers have other suggestions, I'm all ears, but bug #192522 is very severe.

Problems this will cause:

 * 3D transforms will be broken
 * Performance on tablets and phones will be tanked; these are important targets for GTK port


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=192523
[Bug 192523] [GTK] Accelerated compositing mode is in poor state
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