230057 2021-09-08 11:51:10 -0700 [GStreamer] Green screen instead of playing video 2021-09-09 07:09:55 -0700 1 1 1 Unclassified WebKit Media Other PC Linux RESOLVED MOVED Gtk P2 Normal --- 1 wk webkit-unassigned bugs-noreply mcatanzaro pnormand vjaquez oldest_to_newest 1791563 0 wk 2021-09-08 11:51:10 -0700 Steps to reproduce: 1. Start epiphany 2. browse any website with video 3. start video What should happen: Play video. If it cannot be done using hardware acceleration, use software video decoding instead. If that is also not possible, show an error message. What happens: Green screen instead of video. Video stops after some time. Example output on command line: ``` $ LC_ALL=C epiphany https://winfuture.de/videos/Hardware/Fairphone-3-im-Hands-On-Transparentes-fair-gebautes-Smartphone-20630.html failed to open /usr/lib64/dri/hybrid_drv_video.so Not using hybrid_drv_video.so failed to open /usr/lib64/dri/hybrid_drv_video.so Not using hybrid_drv_video.so failed to open /usr/lib64/dri/hybrid_drv_video.so Not using hybrid_drv_video.so ** (epiphany:252407): WARNING **: 19:29:51.802: GDK is not able to create a GL context, falling back to glReadPixels (slow!): Unable to create a GL context ``` (Note that I don't have a hybrid GPU system, only an Intel iGPU) Software version info: epiphany-40.3-1.fc34.x86_64 webkit2gtk3-2.32.3-1.fc34.x86_64 glib2-2.68.4-1.fc34.x86_64 gtk3-3.24.30-1.fc34.x86_64 gstreamer1-1.19.1-2.1.18.4.fc34.x86_64 gstreamer1-vaapi-1.19.1-2.1.18.4.fc34.x86_64 gstreamer1-libav-1.18.4-3.fc34.x86_64 libva-2.11.0-1.fc34.x86_64 libva-intel-driver-2.4.1-5.fc34.x86_64 I am willing to provide more debugging info but I don't know where to start debugging. Note: This issue was first reported on https://gitlab.gnome.org/GNOME/epiphany/-/issues/1594 and put here due to a hint by Michael Catanzaro. 1791566 1 wk 2021-09-08 11:55:12 -0700 Additional notes: This is in a GNOME Wayland session. DConf org.gnome.Epiphany.web hardware-acceleration-policy is 'on-demand' 1791602 2 mcatanzaro 2021-09-08 13:34:35 -0700 By coincidence, somebody else ran into the exact same problem today, and fixed it by uninstalling gstreamer1-vaapi. That will probably fix it for you. (Even if we hadn't dealt with the same problem earlier today, uninstalling gstreamer1-vaapi would be my normal first suggestion.) If that fixes your problem -- it probably will -- then I'm afraid we'll need to yet again ping-pong you to their bug tracker: https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/issues/. > DConf org.gnome.Epiphany.web hardware-acceleration-policy is 'on-demand' Note this setting controls web rendering only. It's unrelated to hardware-accelerated video decoding. 1791761 3 wk 2021-09-08 22:04:42 -0700 (In reply to Michael Catanzaro from comment #2) > By coincidence, somebody else ran into the exact same problem today, and > fixed it by uninstalling gstreamer1-vaapi. I've heard that before and probably have even done that as a workaround before. Thanks for the reminder. And yes, playing the video after uninstalling gstreamer1-vaapi works (same command line as before): ``` $ LC_ALL=C epiphany https://winfuture.de/videos/Hardware/Fairphone-3-im-Hands-On-Transparentes-fair-gebautes-Smartphone-20630.html ** (epiphany:263650): WARNING **: 06:47:12.362: GDK is not able to create a GL context, falling back to glReadPixels (slow!): Unable to create a GL context ``` > If that fixes your problem -- it probably will -- then I'm afraid we'll need > to yet again ping-pong you to their bug tracker: > https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/issues/. Done: https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/issues/312 Shall I mark this bug report here as "resolved | moved"? > > DConf org.gnome.Epiphany.web hardware-acceleration-policy is 'on-demand' > > Note this setting controls web rendering only. It's unrelated to > hardware-accelerated video decoding. Thanks for explaination! 1791882 4 mcatanzaro 2021-09-09 07:09:55 -0700 > Shall I mark this bug report here as "resolved | moved"? Yes, but I'll do that now.