1214172 - Videos stop playing after a short period

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect, P1)

Description

[Kieran Devlin]

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0
Build ID: 20150929144111

Steps to reproduce:

Open Firefox and browse my regular sites, YouTube, Facebook etc.


Actual results:

After a short while, all video players will not play videos until Firefox has been restarted. On YouTube the video just shows the loading icon indefinitely and on Facebook the video player is just black and the video does not play. I'm not sure if this is just for HTML 5 players or for flash also but the problem has been happening since the release of windows 10.


Expected results:

The video should play.

Comment 1

[Kieran Devlin]

This problem will happen every few hours and will fix itself upon restarting Firefox.

Comment 2

[Benjamin Smedberg]

Interesting! I'm going to ask our video team whether there is specific debugging or telemetry data that would help them diagnose the problem.

Comment 3

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Please paste in the graphics section of about:support

Comment 4

[Kieran Devlin]

http://pastebin.com/wwFqBm8j
That's a dump of the about:support page. I would have given screen shots but it would have required about 7 to fit everything in.

Comment 5

[Kieran Devlin]

Just noticed that flash players work fine. Its just the HTML5 players that seem to stop working.

Comment 6

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Is this reproducible on 42?

Comment 7

[Ralph Giles (:rillian)]

Might be a performance problem, or a leak, that's specific to Windows 10. Maybe we're giving up on hardward accel.

Would you mind testing on Firefox 42? https://www.mozilla.org/en-US/firefox/channel/#beta

If it's reproducible there we'll have a better idea what the cause might be.

Comment 8

[Kieran Devlin]

I've updated to 42.0b7, and within an hour the same thing happened.
http://pastebin.com/EJmxQpbq

Comment 9

[Kieran Devlin]

When the players stopped working I tried out some HTML5 apps to see if it was broken as a whole or if it was just the players and its just when loading videos, every other app I tried worked fine. I tried disabling hardware accel but the problem sill persisted.

Comment 10

[Chris Peterson [:cpeterson]]

Kieran, when the problem happens, does it affect all HTML5 video players at the same time (YouTube, Facebook, Vimeo, etc)?

Can you please test if you can reproduce this problem in Firefox Safe Mode? From the Firefox Help menu, select "Restart with Add-ons Disabled" and restart Firefox. Perhaps there is a compatibility problem with one of your add-ons, such as ZenMate or Greasemonkey. Do you have any Greasemonkey scripts that affect YouTube?

Comment 11

[Kieran Devlin]

(In reply to Chris Peterson [:cpeterson] from comment #10)
> Kieran, when the problem happens, does it affect all HTML5 video players at
> the same time (YouTube, Facebook, Vimeo, etc)?
> 
> Can you please test if you can reproduce this problem in Firefox Safe Mode?
> From the Firefox Help menu, select "Restart with Add-ons Disabled" and
> restart Firefox. Perhaps there is a compatibility problem with one of your
> add-ons, such as ZenMate or Greasemonkey. Do you have any Greasemonkey
> scripts that affect YouTube?

It's all players at the same time, I've even had the video stop playing whilst watching one.
Ive already tried in safe mode, its none of the extensions.

Comment 12

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Is this still a problem?

Comment 13

[Kieran Devlin]

Yeah, I've had to install a quick restart keybind so that I can reboot Firefox every hour quickly.

Comment 14

[Jean-Yves Avenard [:jya]]

Could you please provide the output of about:support ?

Thank you

Comment 15

[Kieran Devlin]

(In reply to Jean-Yves Avenard [:jya] from comment #14)
> Could you please provide the output of about:support ?
> 
> Thank you

http://pastebin.com/wwFqBm8j

Comment 16

[Jean-Yves Avenard [:jya]]

Any particular reason you're still using 41? this is very old.

Can you retry with the latest release (44)

Comment 17

[Kieran Devlin]

(In reply to Jean-Yves Avenard [:jya] from comment #16)
> Any particular reason you're still using 41? this is very old.
> 
> Can you retry with the latest release (44)

No that dump is old, I'm using the beta 45b4. Changing versions doesn't help, I've tried that.

Comment 18

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Does setting media.hardware-video-decoding.enabled=false in about:config fix the issue?

Comment 19

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Firefox 47 includes a readback to synchronise with the GPU and removes the fallback to software decode. Is the issue still reproducible?

Comment 20

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

It should be fixed. Re-open if you think otherwise.