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#1 2016-11-16 10:19:24

beta990
Member
Registered: 2011-07-10
Posts: 205

Firefox 50 - Weird issues playing YT video's

After upgrading to FF50, playback on YT video's is broken.
The audio plays fine, but the video is stuck in a loop of the first seconds of the stream.

Anyone else having this issue?

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#2 2016-11-16 16:56:08

superchango
Member
From: Tenochtitlan
Registered: 2009-01-22
Posts: 132

Re: Firefox 50 - Weird issues playing YT video's

No problem here. Do you use flash version or html5 Youtube version? With html5 i don't have any problem.


"Yo creo que los muertos son tiernos. ¿Nos besamos?"

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#3 2016-11-16 19:37:08

beta990
Member
Registered: 2011-07-10
Posts: 205

Re: Firefox 50 - Weird issues playing YT video's

superchango wrote:

No problem here. Do you use flash version or html5 Youtube version? With html5 i don't have any problem.

It is with HTML5-video, also see no reports on the bugtracker. Maybe a HWAccel issue?

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#4 2016-11-16 20:24:49

Eko2016
Member
Registered: 2016-11-16
Posts: 7

Re: Firefox 50 - Weird issues playing YT video's

Same issue here...

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#5 2016-11-16 20:59:39

Roken
Member
From: UK
Registered: 2012-01-16
Posts: 979

Re: Firefox 50 - Weird issues playing YT video's

I have to be honest, I love FF, but lately it's getting slow. Using Chrome more, and it's much faster and works with Netflix.


[img=Speedtest]http://www.speedtest.net/my-result/5145583518[/img]

Ryzen 1800x 8 core/16 thread - GTX 1060 6Gb, Asus ROG STRIX B350-F, 16Gb Corsair DDR4, Cooler Master N300 chassis, 6 HD (2SSD - 4Spinners) + 1 x optical.
Linux user #545703

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#6 2016-11-16 21:55:45

willforde
Member
Registered: 2016-10-21
Posts: 3

Re: Firefox 50 - Weird issues playing YT video's

Same issue here too. But I did make changes with the HWAccel settings. I have rold back to 49 for now

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#7 2016-11-16 22:08:11

loqs
Member
Registered: 2014-03-06
Posts: 9,094

Re: Firefox 50 - Weird issues playing YT video's

Does it happen for all videos?  If for particular ones which codec is in use?
Is e10 active or not? ( see about:support Multiprocess Windows )
Is this under X11 or Wayland?
What GPU are you using, which kernel module, which X11 driver if applicable?

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#8 2016-11-16 22:44:04

Eko2016
Member
Registered: 2016-11-16
Posts: 7

Re: Firefox 50 - Weird issues playing YT video's

Me too rolled back to 49. Anyway:

loqs wrote:

Does it happen for all videos?

sorry but I only checked on youtube

loqs wrote:

If for particular ones which codec is in use?

I have html5 enabled

loqs wrote:

Is e10 active or not? ( see about:support Multiprocess Windows )

Multi-process staged rollout Ver.1.3 enabled

loqs wrote:

Is this under X11 or Wayland?

X11

loqs wrote:

What GPU are you using, which kernel module, which X11 driver if applicable?

Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09) (cpu i5-3570k)
xf86-video-intel 1:2.99.917+730+gdad64e9-1
libva-intel-driver 1.7.3-1
excerpt from /var/log/Xorg.0.log:

Eko2016 wrote:

(II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
    compiled for 1.18.4, module version = 2.99.917
(II) Loading sub module "dri3"
(II) Loading sub module "dri2"
(II) Loading sub module "present"

Last edited by Eko2016 (2016-11-16 22:44:36)

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#9 2016-11-16 22:49:15

willforde
Member
Registered: 2016-10-21
Posts: 3

Re: Firefox 50 - Weird issues playing YT video's

Just checked and the problem is not always there but it will randomly start and ones it does it will effect all videos. At least all the ones that I have tested and only until you restart firefox.
GPU = Nvidia, with proprietary nvidia driver.
X11
No e10 sadly.

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#10 2016-11-16 22:55:13

FlowIt
Member
Registered: 2014-10-25
Posts: 239

Re: Firefox 50 - Weird issues playing YT video's

Can confirm.
Tested with various Html5 videos on different websites, all have the described playback issue. X11, modesetting, Intel driver, e10s is disabled, hwaccel on or off has no effect.

Last edited by FlowIt (2016-11-16 22:55:36)

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#11 2016-11-16 23:08:55

loqs
Member
Registered: 2014-03-06
Posts: 9,094

Re: Firefox 50 - Weird issues playing YT video's

https://www.youtube.com/html5 does it show all options supported?
Edit:
Looking at the responses does not appear to be limited to one X11 driver or one GPU.
I can not produced the issue on my system with the nvidia driver checked both webm and h264 both checked with and without e10s enabled.

Last edited by loqs (2016-11-16 23:29:25)

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#12 2016-11-16 23:19:13

Eko2016
Member
Registered: 2016-11-16
Posts: 7

Re: Firefox 50 - Weird issues playing YT video's

loqs wrote:

https://www.youtube.com/html5 does it show all options supported?

yes

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#13 2016-11-16 23:38:19

loqs
Member
Registered: 2014-03-06
Posts: 9,094

Re: Firefox 50 - Weird issues playing YT video's

Can you produce the issue using a new profile

$ firefox -P

Are you using an AUR package such as ffmpeg-git to provide ffmeg?

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#14 2016-11-16 23:50:09

FlowIt
Member
Registered: 2014-10-25
Posts: 239

Re: Firefox 50 - Weird issues playing YT video's

I only know for YT how to check the codec. It's vp9. I am using ffmpeg's internal vp9 implemetations, not libvpx.
A clean profile does not solve the issue.
I tried firefox-beta-bin from AUR, which uses the same profile I use for FF50, and it seems to work fine.
EDIT: No, I was just lucky. firefox-beta has the same issue.

Last edited by FlowIt (2016-11-16 23:51:48)

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#15 2016-11-16 23:55:24

Eko2016
Member
Registered: 2016-11-16
Posts: 7

Re: Firefox 50 - Weird issues playing YT video's

loqs wrote:

Can you produce the issue using a new profile

$ firefox -P

Are you using an AUR package such as ffmpeg-git to provide ffmeg?

Ok, created a new profile and now youtube is properly working! big_smile
(no AUR for ffmpeg)

Thank You!

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#16 2016-11-17 02:10:02

willforde
Member
Registered: 2016-10-21
Posts: 3

Re: Firefox 50 - Weird issues playing YT video's

I created a new profile and still have the same problem.
But it did fix an issue that I was having with the menu not working.

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#17 2016-11-17 08:18:17

MeMi69
Member
From: Elmshorn, Germany
Registered: 2007-04-09
Posts: 5
Website

Re: Firefox 50 - Weird issues playing YT video's

Have disabled the integrated OpenH264 in Firefox.

about:config
media.gmp-provider.enabled from true -> false

Now the VP9 videos are working smooth (tested on youtube and vimeo)

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#18 2016-11-17 10:26:51

loksena@gmail.com
Member
Registered: 2016-10-01
Posts: 1

Re: Firefox 50 - Weird issues playing YT video's

MeMi69 wrote:

Have disabled the integrated OpenH264 in Firefox.

about:config
media.gmp-provider.enabled from true -> false

Now the VP9 videos are working smooth (tested on youtube and vimeo)

That worked for me.
Thanks.

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#19 2016-11-17 12:04:42

Eko2016
Member
Registered: 2016-11-16
Posts: 7

Re: Firefox 50 - Weird issues playing YT video's

MeMi69 wrote:

Have disabled the integrated OpenH264 in Firefox.

about:config
media.gmp-provider.enabled from true -> false

Now the VP9 videos are working smooth (tested on youtube and vimeo)

Strange, just checked my config and it's set as "true", though Youtube and Vimeo VP9s play smooth
Just FYI

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#20 2016-11-17 12:05:48

loqs
Member
Registered: 2014-03-06
Posts: 9,094

Re: Firefox 50 - Weird issues playing YT video's

@MeMi69 The OpenH264 Video Codec provided by Cisco Systems, Inc.  should only be being used for webrtc and obviously not for vp9 content,  this would seem to be a bug you should report upstream.
Are you certain the videos you tried were vp9 not h264?  (on youtube you can check using the right click menu information for geeks  )
If the content is vp9 does setting media.mediasource.webm.enabled and media.webm.enabled to false to force the content to h264 still result in looping video with media.gmp-provider.enabled set back to true?

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#21 2016-11-17 12:19:34

Eko2016
Member
Registered: 2016-11-16
Posts: 7

Re: Firefox 50 - Weird issues playing YT video's

Weird:
I had just gone back to my default firefox profile to see if it could be "recovered" (maybe cleaning some extensions, etc) and, to my surprise, Youtube was working ok.
Closed the tab, coming back to this thread to report the strange happening, on a second check - new tab - the same videos now go in loop

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#22 2016-11-17 12:48:02

MeMi69
Member
From: Elmshorn, Germany
Registered: 2007-04-09
Posts: 5
Website

Re: Firefox 50 - Weird issues playing YT video's

@loqs

Yes! your are right. Was not a vp9 video...
I have switched the values in config back to default.

Have the same problem like Eko2016.
After a switch or "reset" of the profile I am able to play videos.
If I restart FF or open a video in new tab, the video goes in loop...


very weird...

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#23 2016-11-17 14:53:11

beta990
Member
Registered: 2011-07-10
Posts: 205

Re: Firefox 50 - Weird issues playing YT video's

Wow (one day later), thought I was the only one. yikes
It does happen at random, and also with a clean profile.
Audio plays fine, but video playback is broken.

Info:
- AMD R7 290 (radeon driver)
- HWAccel is (force-)enabled, but had no issues in <FF50
- Latest updates installed
- A clean profile doesn't make a differ

Last edited by beta990 (2016-11-17 18:12:08)

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#24 2016-11-17 17:08:29

loqs
Member
Registered: 2014-03-06
Posts: 9,094

Re: Firefox 50 - Weird issues playing YT video's

Upstream is requesting this be filed as a new bug report.
https://bugzilla.mozilla.org/show_bug.cgi?id=1317994#c6

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#25 2016-11-17 18:12:00

beta990
Member
Registered: 2011-07-10
Posts: 205

Re: Firefox 50 - Weird issues playing YT video's

loqs wrote:

Upstream is requesting this be filed as a new bug report.
https://bugzilla.mozilla.org/show_bug.cgi?id=1317994#c6

Done: https://bugzilla.mozilla.org/show_bug.cgi?id=1318404

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