(In reply to Sotaro Ikeda [:sotaro] from comment #9) > Mayank Bansal, can you check if the problem happens with pref "gfx.webrender.dcomp-video-vp-scaling-win = false"? I wonder if the problem is related to video scaling. yes https://share.firefox.dev/3vVC9b5
Bug 1767185 Comment 11 Edit History
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(In reply to Sotaro Ikeda [:sotaro] from comment #9) > Mayank Bansal, can you check if the problem happens with pref "gfx.webrender.dcomp-video-vp-scaling-win = false"? I wonder if the problem is related to video scaling. The problem still repros https://share.firefox.dev/3vVC9b5 (Edited for more clarity)