(In reply to Robert Mader [:rmader] from comment #6) > For me it's especially visible with the hamburger menu: it apparently often does not get damaged when hovering items, making it update super slow. Disabling partial damage makes fast again. Confirmed on Xwayland. (In reply to Robert Mader [:rmader] from comment #15) > Got a fix! It was Xwayland after all: https://gitlab.freedesktop.org/daenzer/xserver/-/commit/71c416d3b44014035785b9df66c5f6539d3e968e Thank you! :) ---- Affected is EGL/XWayland with Mesa >20.2 (Debian Testing, Ubuntu 20.10). * It will be fixed with xserver [1.20.10](https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/549). Debian Testing currently has [1.20.8](https://packages.debian.org/testing/xserver-xorg-core). Ubuntu 20.10 has [1.20.9](https://packages.ubuntu.com/groovy/xserver-xorg-core). * This bug doesn't seem to occur if the video is 16:9 and fills the whole screen. That's also why I couldn't reproduce it with Firefox' own video player UI until now. I'll needinfo myself and verify once I've got the update. The fix seems plausible.
Bug 1677892 Comment 16 Edit History
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(In reply to Robert Mader [:rmader] from comment #6) > For me it's especially visible with the hamburger menu: it apparently often does not get damaged when hovering items, making it update super slow. Disabling partial damage makes fast again. Confirmed on Xwayland. (In reply to Robert Mader [:rmader] from comment #15) > Got a fix! It was Xwayland after all: https://gitlab.freedesktop.org/daenzer/xserver/-/commit/71c416d3b44014035785b9df66c5f6539d3e968e Thank you! :) ---- Affected is EGL/XWayland with Mesa 20.2 (Debian Testing, Ubuntu 20.10). * It will be fixed with xserver [1.20.10](https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/549). Debian Testing currently has [1.20.8](https://packages.debian.org/testing/xserver-xorg-core). Ubuntu 20.10 has [1.20.9](https://packages.ubuntu.com/groovy/xserver-xorg-core). * This bug doesn't seem to occur if the video is 16:9 and fills the whole screen. That's also why I couldn't reproduce it with Firefox' own video player UI until now. I'll needinfo myself and verify once I've got the update. The fix seems plausible.
(In reply to Robert Mader [:rmader] from comment #6) > For me it's especially visible with the hamburger menu: it apparently often does not get damaged when hovering items, making it update super slow. Disabling partial damage makes fast again. Confirmed on Xwayland. (In reply to Robert Mader [:rmader] from comment #15) > Got a fix! It was Xwayland after all: https://gitlab.freedesktop.org/daenzer/xserver/-/commit/71c416d3b44014035785b9df66c5f6539d3e968e Thank you! :) ---- Affected is EGL/XWayland with Mesa 20.2 (Debian Testing, Ubuntu 20.10). * It will be fixed with xwayland [1.20.10](https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/549). Debian Testing currently has [1.20.8](https://packages.debian.org/testing/xwayland). Ubuntu 20.10 has [1.20.9](https://packages.ubuntu.com/groovy/xwayland). * This bug doesn't seem to occur if the video is 16:9 and fills the whole screen. That's also why I couldn't reproduce it with Firefox' own video player UI until now. I'll needinfo myself and verify once I've got the update. The fix seems plausible.