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On subsequent hotplug connected event for a display SurfaceFlinger destroys the previous framebuffers and recreates them. When the new buffers are created ComposerClient still holds a handle to the old buffers and they are not destroyed. This way the new framebuffers may get allocated on non continuous memory causing garbled screens for the user. This is already implemented for ComposerClient 2.1-2.3. In this CL only the behavior for ComposerClient 2.4 is changed. Test: manually flash a device Bug: 178785393 Change-Id: I6aa1243d61676c0a3d42cb7aecf19e6f8802cb1a