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Firefox Won't Play HTML5 Video Correctly
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PlainAlpha
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Joined: 02 May 2016
Posts: 25

PostPosted: Fri Jan 13, 2017 12:21 pm    Post subject: Firefox Won't Play HTML5 Video Correctly Reply with quote

After an update, I can't get firefox to play webms and other HTML5 video correctly. When I hit play, the audio plays fine, but the video goes into a short jittery loop like it keeps starting over. If I try to go to another point in the video, I'll see a frame or two of where I clicked, then it goes back to the looping.

I don't even know where to start when it comes to fixing this.
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fcl
Tux's lil' helper
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Joined: 31 Dec 2016
Posts: 77

PostPosted: Fri Jan 13, 2017 12:37 pm    Post subject: Reply with quote

Yes, this is a known annoying bug. See Gentoo bug #600344 and https://bugzilla.mozilla.org/show_bug.cgi?id=1318404

You may try to disable layers acceleration OR force enable e10s (electrolysis). See https://bugzilla.mozilla.org/show_bug.cgi?id=1318404#c18


FYI, e10s doesn't work properly on my PC so I ended up installing Open With addon and piping webms/other videos to mpv (with youtube-dl)
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PlainAlpha
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PostPosted: Fri Jan 13, 2017 1:20 pm    Post subject: Reply with quote

Thanks for the help. I disabled the layers acceleration and its working fine now.
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fcl
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PostPosted: Fri Jan 13, 2017 1:51 pm    Post subject: Reply with quote

I tried that as well but it introduced nasty tearing which I absolutely hate so I opted for this slightly peculiar solution. :roll:
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Fitzcarraldo
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Joined: 30 Aug 2008
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PostPosted: Fri Jan 13, 2017 2:39 pm    Post subject: Reply with quote

Also discussed in the thread https://forums.gentoo.org/viewtopic-t-1055310.html
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Clevo W230SS: amd64, VIDEO_CARDS="intel modesetting nvidia".
Compal NBLB2: ~amd64, xf86-video-ati. Dual boot Win 7 Pro 64-bit.
OpenRC udev elogind & KDE on both.

Fitzcarraldo's blog
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PlainAlpha
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PostPosted: Fri Jan 13, 2017 3:35 pm    Post subject: Reply with quote

fcl wrote:
I tried that as well but it introduced nasty tearing which I absolutely hate so I opted for this slightly peculiar solution. :roll:

I haven't noticed any tearing yet. I can't stand it either. I just might not have noticed yet because I rarely want to watch embedded videos on full screen. If it becomes an issue I'll try force enabling e10s.
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Anarchy
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Joined: 29 Jun 2005
Posts: 140

PostPosted: Sun Jan 15, 2017 12:46 am    Post subject: Reply with quote

PlainAlpha wrote:
fcl wrote:
I tried that as well but it introduced nasty tearing which I absolutely hate so I opted for this slightly peculiar solution. :roll:

I haven't noticed any tearing yet. I can't stand it either. I just might not have noticed yet because I rarely want to watch embedded videos on full screen. If it becomes an issue I'll try force enabling e10s.


I have changes the default to -hwaccel in the Mozilla overlay you already welcome to use it.
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