[Tracking Requested - why for this release]: This regression affects: * MOZ_ENABLE_WAYLAND=1 users with Firefox 79, * MOZ_X11_EGL=1 and MOZ_ENABLE_WAYLAND=1 users with Firefox 80. Everyone is excited that Firefox 80 finally supports VAAPI hardware decoding on X11, it got news coverage, etc., but those who tested it know that it suffers from at least two fatal bugs. (bug 1645672 is the other one.) Wayland/MOZ_X11_EGL and VAAPI are still experimental and disabled-by-default, but it's a killer feaeture that brings users back. Therefore please consider uplifing this into beta, and even into a dot release, if there is any. Downstream Fedora applies this patch on Firefox 79: https://src.fedoraproject.org/rpms/firefox/c/cd18e999f576523b6b3f2076bca625d5e04d1178?branch=master https://www.reddit.com/r/archlinux/comments/i0ireu/firefox_developer_edition_hardware_video/fzpojad/ https://www.reddit.com/r/flatpak/comments/i157dm/green_flashes_in_video_in_firefox/ https://www.reddit.com/r/linux/comments/i04cvr/psa_firefox_79_appears_to_break_vaapi_decoding_on/ https://www.reddit.com/r/firefox/comments/i1p2ct/linux_vaapi_video_decode_acceleration_unreliable/
Bug 1645671 Comment 26 Edit History
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[Tracking Requested - why for this release]: This regression affects: * MOZ_ENABLE_WAYLAND=1 users with Firefox 79, * MOZ_X11_EGL=1 and MOZ_ENABLE_WAYLAND=1 users with Firefox 80. Everyone is excited that Firefox 80 finally supports VAAPI hardware decoding on X11, it got news coverage, etc., but those who tested it know that it suffers from at least two fatal bugs. (bug 1645672 is the other one.) Wayland/MOZ_X11_EGL and VAAPI are still experimental and disabled-by-default, but it's a killer feature that brings users back. Therefore please consider uplifing this into beta, and even into a dot release, if there is any. Downstream Fedora applies this patch on Firefox 79: https://src.fedoraproject.org/rpms/firefox/c/cd18e999f576523b6b3f2076bca625d5e04d1178?branch=master https://www.reddit.com/r/archlinux/comments/i0ireu/firefox_developer_edition_hardware_video/fzpojad/ https://www.reddit.com/r/flatpak/comments/i157dm/green_flashes_in_video_in_firefox/ https://www.reddit.com/r/linux/comments/i04cvr/psa_firefox_79_appears_to_break_vaapi_decoding_on/ https://www.reddit.com/r/firefox/comments/i1p2ct/linux_vaapi_video_decode_acceleration_unreliable/