I missed this needinfo sorry. I added it because I did not want to want for the schedule. We have a bad frame buffer currently swapped and we need to recomposite to make it go away.
Bug 1672565 Comment 7 Edit History
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I missed this needinfo sorry. I added it because I did not want to wait for the schedule. We may have a bad frame buffer currently swapped when we get the configure event which raced against our frame generation. The only way to make it go away from my testing was to recomposite. Ideally we would beat vsync displaying the frame.