Gnome Wayland, Debian Testing, Intel Iris 6100 (Broadwell GT3), 2560x1600 My STR for intermittently stuttering video: Repeatedly hover the progress bar to make stuttering more likely. $ MOZ_ENABLE_WAYLAND=1 MOZ_LOG="PlatformDecoderModule:5" mozregression --launch 2020-05-13 --pref gfx.webrender.all:true media.webm.enabled:false widget.wayland-dmabuf-vaapi.enabled:true security.sandbox.content.level:0 --process-output stdout -a https://www.youtube.com/embed/PvKiWRTSAzg Disabling gfx.webrender.picture-caching does not further reduce low CPU usage of 4-8% and does not fix the problem. It can stutter regardless of video resolution or video control visiblity. I have watched 1080p in a loop: "Double right click > Full screen" does not have video controls, but stutters as well if my cursor is not yet hidden.
Bug 1619882 Comment 53 Edit History
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Gnome Wayland, Debian Testing, Intel Iris 6100 (Broadwell GT3), 2560x1600 My STR for intermittently stuttering video: Repeatedly hover the progress bar to make stuttering more likely. $ pip3 install --upgrade mozregression $ MOZ_ENABLE_WAYLAND=1 MOZ_LOG="PlatformDecoderModule:5" mozregression --launch 2020-05-13 --pref gfx.webrender.all:true media.webm.enabled:false widget.wayland-dmabuf-vaapi.enabled:true security.sandbox.content.level:0 --process-output stdout -a https://www.youtube.com/embed/PvKiWRTSAzg Disabling gfx.webrender.picture-caching does not further reduce low CPU usage of 4-8% and does not fix the problem. It can stutter regardless of video resolution or video control visiblity. I have watched 1080p in a loop: "Double right click > Full screen" does not have video controls, but stutters as well if my cursor is not yet hidden.
Gnome Wayland, Debian Testing, Intel Iris 6100 (Broadwell GT3), 2560x1600 My STR for intermittently stuttering video: Repeatedly hover the progress bar to make stuttering more likely. $ pip3 install --upgrade mozregression $ MOZ_ENABLE_WAYLAND=1 MOZ_LOG="PlatformDecoderModule:5" mozregression --launch 2020-05-13 --pref gfx.webrender.all:true media.webm.enabled:false widget.wayland-dmabuf-vaapi.enabled:true security.sandbox.content.level:0 --process-output stdout -a https://www.youtube.com/embed/PvKiWRTSAzg Disabling gfx.webrender.picture-caching does not further reduce low CPU usage of 4-8% and does not fix the problem. It can stutter regardless of video resolution or video control visibility. I have watched 1080p in a loop: "Double right click > Full screen" does not have video controls, but stutters as well if my cursor is not yet hidden.