When pref gfx.webrender.compositor = false, the problem did not happen.
Bug 1755119 Comment 12 Edit History
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(In reply to Sotaro Ikeda [:sotaro] from comment #9) > Thanks, I confirmed that the Windows 11 Insider Dev Preview Build could reproduce the problem on my laptop. > Before updating to the Insider Dev Preview Build the problem did not happen on the laptop. When pref gfx.webrender.compositor = false, the problem did not happen.
(In reply to Sotaro Ikeda [:sotaro] from comment #9) > Thanks, I confirmed that the Windows 11 Insider Dev Preview Build could reproduce the problem on my laptop. > Before updating to the Insider Dev Preview Build the problem did not happen on the laptop. When pref gfx.webrender.compositor = false, the problem did not happen. In this case, SwapChain + DirectComposition was used for rendering. By default, DirectComposition + VirtualSurface is used.